New data on Geometrid moths (Lepidoptera: Geometridae) of the Baikal region, Russia

Abstract

The list of 52 species of geometrid moths (Lepidoptera: Geometridae)
of the Baikal region (Irkutskaya oblast and Buryatia, Russia) is given. Rheumaptera neocervinalis Inoue, 1982 is reported as new for Siberia, 3 species are new for Baikal region, 18 species are new for Irkutskaya oblast and 4 species are new for Buryatia; distribution in the Baikal region of 4 species is confirmed; literature reference of 23 species from the region are considered as dubious. As result, total number of geometrids in the Baikal region reaches to 347 species from 153 genera. Genus name Scardostrenia Sterneck, 1928, stat. n., is removed from synonymy with the name Proteostrenia Warren, 1895; original combination of the name Scardostrenia reticulata Sterneck, 1928, comb. resurr. is restored. A key to Ourapteryx ussurica Inoue, 1993 and Ourapteryx sambucaria (Linnaeus, 1758) is given. Accuracy of the original geographic labels of the holotypes of Proteostrenia reticulata transbaicalensis Wehrli, 1939, Erannis bajaria var. transbaikalica Wehrli, 1928, and Nothomiza submediostrigata Wehrli, 1939, had been described from Buryatia and Zabaikalsky krai, is discussed.

Full text

Number 391: 1-23 ISSN 1026-051X September 2019
https://doi.org/10.25221/fee.391.1
http://zoobank.org/References/09FA2576-7AA8-42EA-ADFD-D1CD7C5C6600
NEW DATA ON GEOMETRID MOTHS (LEPIDOPTERA:
GEOMETRIDAE) OF THE BAIKAL REGION, RUSSIA
I. A. Makhov 1, 2), E. A. Beljaev 3*)
1) Saint Petersburg State University, Biological Faculty, St. Petersburg 199034,
Russia. E-mail: makhov@mail.ru
2) Zoological Institute of the Russian Academy of Sciences, St. Petersburg
199034, Russia.
3) Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far
Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russia.
*Corresponding author, E-mail: beljaev@ibss.dvo.ru
Summary. The list of 52 species of geometrid moths (Lepidoptera: Geometridae)
of the Baikal region (Irkutskaya oblast and Buryatia, Russia) is given. Rheumaptera
neocervinalis Inoue, 1982 is reported as new for Siberia, 3 species are new for Baikal
region, 18 species are new for Irkutskaya oblast and 4 species are new for Buryatia;
distribution in the Baikal region of 4 species is confirmed; literature reference of 23
species from the region are considered as dubious. As result, total number of geo-
metrids in the Baikal region reaches to 347 species from 153 genera. Genus name
Scardostrenia Sterneck, 1928, stat. n., is removed from synonymy with the name
Proteostrenia Warren, 1895; original combination of the name Scardostrenia reticu-
lata Sterneck, 1928, comb. resurr. is restored. A key to Ourapteryx ussurica Inoue,
1993 and Ourapteryx sambucaria (Linnaeus, 1758) is given. Accuracy of the original
geographic labels of the holotypes of Proteostrenia reticulata transbaicalensis
Wehrli, 1939, Erannis bajaria var. transbaikalica Wehrli, 1928, and Nothomiza
submediostrigata Wehrli, 1939, had been described from Buryatia and Zabaikalsky
krai, is discussed.
1

Key words: Geometridae, fauna, new records, taxonomy, Irkutskaya oblast,
Buryatia, Zabaikalsky krai.
И. А. Махов, Е. А. Беляев. Новые данные о пяденицах (Lepidoptera:
Geometridae) Байкальского региона, Россия // Дальневосточный энтомо-
лог. 2019. N 391. С. 1-23.
Резюме. В работе обсуждается 52 вида пядениц (Geometridae) из Байкаль-
ского региона (Иркутская область и Бурятия). Из них 1 вид приводится впервые
для Сибири (Rheumaptera neocervinalis Inoue, 1982), 3 вида – впервые для
Байкальского региона, 18 видов – впервые для Иркутской области и 4 вида –
впервые для Бурятии; подтверждается обитание в регионе 4 проблемных видов;
приведение в литературе для региона 23 видов рассматривается как
сомнительное. В результате общее количество пядениц в Байкальском регионе
достигло 347 видов из 153 родов. Родовое название Scardostrenia Sterneck,
1928, stat. n., восстановлено из синонимии с Proteostrenia Warren, 1895;
восстановлена оригинальная комбинация для названия Scardostrenia reticulata
Sterneck, 1928, comb. resurr. Дан ключ для определения бабочек Ourapteryx
ussurica Inoue, 1993 и Ourapteryx sambucaria (Linnaeus, 1758). Обсуждается
достоверность оригинальных географических этикеток голотипов описанных
из Бурятии и Забайкальского края Proteostrenia reticulata transbaicalensis Wehrli,
1939, Erannis bajaria var. transbaikalica Wehrli, 1928 и Nothomiza submediostrigata
Wehrli, 1939.
INTRODUCTION
The Baikal region is a large territory in the central Asia, including the broad
environs of Lake Baikal. Two administrative subjects of the Russian Federation are
located in the Baikal region: Irkutskaya oblast and Buryatia.
Eversmann, who described 10 new species of geometrids from the vicinity of
Irkutsk (Eversmann, 1848, 1851, 1852), was first to start the study these moths in
the Baikal region. Thereafter, different authors have published numerous works
containing mainly descriptions of solitary new species, or new finds of geometrid
moths on the discussed territory. Regarding the most important papers about local
or regional Geometridae faunas of the Baikal region, the following publications
should be mentioned: Staudinger (1892), Tshugunov (1914), Viidalepp (1974),
Vasilyeva & Epova (1987), Vasilyeva (1989), Mironov (1989), Berlov & Berlov
(2004, 2006), Gordeeva & Gordeev (2007), and Makhov (2015).
The data on the geometrid fauna of the region published before 2008 as well as
original data from various collections were compiled in the corresponding section of
the Catalogue of the Lepidoptera of Russia (Mironov et al., 2008). In the Catalogue
245 species of geometrid moths are indicated for Irkutskaya oblast (referred to herein
as "Predbaikalsky region") and furthermore 39 species are indicated by question
mark as doubtful or putative. Similarly, 293 species and 21 species are indicated for
Buryatia (referred to herein as "Pribaikalsky region"). Taking into account the late
2

publications (Makhov, 2015, Mironov & Belova, 2015, Gordeeva, 2016), 260 spe-
cies of geometrids have been confirmed for Irkutskaya oblast, and 307 species – for
Buryatia by now.
The present article provides new materials on the fauna of geometrid moths of
Irkutskaya oblast and Buryatia, and clarifies the data on some species listed in the
Catalogue of the Lepidoptera of Russia and other previous publications.
MATERIAL AND METHODS
The basis of this work is a collection of the first author as well as materials from
the stock collections of Biological Faculty of Irkutsk State University, Zoological
Institute of Russian Academy of Sciences (St. Petersburg) and the personal
collection of Eduard Berlov.
The moths sampling was conducted during 9 years (2008–2016) from mid-April
to early September with standard methods. The bulk of the geometrids was captured
at night (usually since twilight coming to 3–4 am) using a Sylvania HSL-BW 250W
E40 mercury lamp powered from a FUBAG TI 1000 petrol generator and a portable
screen made of white cotton canvas. The small part of lepidopterans was caught at
day-time by an entomological net.
We made the genitalia preparations for externally similar species, and then
studied them with a Nikon SMZ 1500 stereomicroscope. The photos of genitalia
presented below were performed using a Nikon D700 camera fitted with LV-TV
adapter and Helicon software (Helicon Remote 3.8.1; Helicon Focus 6.7.1).
In the annotated checklist given below, species recorded in the federal subject
for the first time are indicated as follows: by a single asterisk (*) – new species for
Irkutskaya oblast, by double asterisk (**) – new species for Buryatia, and by triple
asterisk (***) – new species for whole Baikal region. Each species review contains
information on the number of specimens examined, their collecting localities and
the date, the collector (if the specimen was not caught by the first author) and
deposit location of the material encoded by capital letters in parentheses (namely
BF – Biological Faculty of Irkutsk State University, Irkutsk; EB – a personal
collection of E. Berlov, Irkutsk; IM – personal collection of I. Makhov, Irkutsk;
ZIN – Zoological Institute of Russian Academy of Sciences, St. Petersburg). After
the species name the references to the previous mentions of the taxon for the
regions are given if present. Distribution in Siberia and Far East is detailed to
administrative territories. The taxonomic order is accepted according to the one in
an Annotated catalogue of the insects of Russian Far East (Beljaev, 2016).
NEW RECORDS WITH TAXOMOMIC NOTES
Family Geomrtridae
Subfamily Ennominae
3

Ourapteryx ussurica Inoue, 1993
Figs 1, 8–11
Ourapteryx ussurica: Viidalepp, 1996: 70 ("Buryatia?"); Vasilenko, Gordeeva, 2004:
1438; Gordeeva & Gordeev, 2007: 134; Berlov & Berlov, 2006: 107.
Ourapteryx persica (nec Ménétriès, 1832): Vasilyeva, 1989: 113; Vasilyeva & Epova,
1987: 71.
Ourapteryx sambucaria (nec Linnaeus, 1758): Vasilyeva, 1989: 113; Viidalepp, 1996: 70
("E. Sayan Mts?"); Mironov & Belova, 2015.
Ourapteryx koreana Inoue, 1993: Mironov et al. 2008: 193.
MATERIAL. Irkutskaya oblast: Irkutsk distr., Bolshie Koty, 51º54ʹN, 105º04ʹE, 11.VII
2007, 1♂; same locality, 27.VII 2006, 1♂, V. Shilenkov; same locality, 27.VII 2006, 1♀, S.
Didorenko); same locality, 12.VII 1965, 1♂; same locality, 14.VII 1965, 1♀; same locality,
27.VII 1965, 1♂, unknown collector); Shelekhovsky distr., 40 km SW of Irkutsk,
Podkamennaya station, 51º57ʹN, 103º54ʹE, 3.VIII 2011, 1♀, V. Shilenkov [BF]; Irkutsk
distr., Bolshie Koty, 51º54ʹN, 105º04ʹE, 8.VII 2012, 1♂; same locality, 8.VII 2010, 1♂; same
locality, 11.VII 2012, 1♀; same locality, 5.VII 2012, 1♂; same locality, 10.VII 2010, 2♂;
same locality, 17.VII 2012, 1♂, 1♀; same locality, 31.VII 2016, 1♂; same locality, 1.VIII 2016,
1♀ [IM]; Buryatia: Dzhidinsky distr., near Bayan, 50º32ʹN, 105º15ʹE, 5.VII 2016, 1♂;
Dzhidinsky distr., 14 km SE of Petropavlovka settlement, Malyi Tasarkhai base, 50º31ʹN,
105º29ʹE, 7.VII 2016, 6♂; same locality, 8.VII 2016, 4♂; Tunkinsky distr., Khubuty river
midstream, 35 km NW of Kyren, 51º46ʹN, 101º38ʹE, 28.VI 2018, 1♂ [IM].
DISTRIBUTION. Russia: S Siberia (S Irkutskaya oblast, Buryatia, Zabaikalsky krai), Far
East (Amurskaya oblast, Khabarovsky krai, Primorsky krai); Korea, ?China.
NOTES. Our data confirm the presence in the Baikal region only O. ussurica (=O. kore-
ana; the synonymy is established by Beljaev, 2016). The easternmost actual locality for O.
sambucaria is Cheryomushki village in Krasnoyarsky krai (Zolotuhin, 2017). Due to the
difficulty for discrimination of species from O. sambucaria – group and potential overlapping
of the ranges of O. sambucaria and O. ussurica in the Southern Siberia, a key to these species
is given below.
1. Forewing pointed and distinctly falcate to apex. Straight line drawn along outer margin of
hind-wing from its anterior angle to base of tail (wing projection at M3 vein) runs basad
of anterior spot on the tail base; longitudinal axes of anterior and posterior spots in base
of tail form almost a right angle (Fig. 7). In male genitalia distal process of uncus
relatively thick, basal half of calcar (process of juxta) straight; apex of calcar rounded-
blunted, basal process of aedeagus bent ventrally, cornuti on vesica moderately thin,
almost as long as width of aedeagus in middle part. In female genitalia proximal sclerotized
portion of corpus bursae is straight ..……………………………..………. O. sambucaria
– Forewing less pointed and not falcate, outer margin of the wing almost straight. Straight
line drawn along outer margin of hind-wing from its anterior angle to base of tail runs
through anterior spot on the tail base; longitudinal axes of anterior and posterior spots in
base of tail form a wide obtuse angle (Fig. 8). In male genitalia distal process of uncus
thin, basal half of calcar smoothly curved; apex of calcar tapered-pointed (beak-shaped),
basal process of aedeagus not bent ventrally, cornuti on vesica very thin, much longer
than aedeagus width in middle part (Figs 9–11). In female genitalia proximal sclerotized
part of corpus bursae is curved …………………………………….……….... O. ussurica
4

Figs. 1–7. Adilts. 1 – Ourapteryx ussurica Inoue, 1993, male; 2 – Scardostrenia
reticulata Sterneck, 1928, female; 3 – Abraxas karafutonis Matsumura, 1925, female; 4 –
Lithostege farinata (Hufnagel, 1767), male; 5 – Rheumaptera neocervinalis Inoue, 1982,
male; 6 – Horisme scotosiata (Guenée, 1858), male.
*Elophos (Yezognophos) vittaria (Thunberg, 1788)
Elophos vittaria: Mironov et al. 2008: 199 (region 26: "?")
Kemtrognophos remmi (nec Viidalepp, 1988): Berlov & Berlov, 2006: 108.
MATERIAL. Irkutskaya oblast: Slyudyansky distr., 17 km S of Slyudyanka, Cherskogo
Mt., 51º31ʹN, 103º37ʹE, 1430–2000 m, 25.VII 1984, 2♂, 3♀, S. Yu. Sinev [ZIN]; Elokhin,
13.VII 2004, 1♀, О. Berlov [EB].
DISTRIBUTION. Russia: N European part (southeast to Udmurtia), Ural, Siberia (Yamalo-
Nenets AO, Krasnoyarsky krai, Altai Republic, Tyva, Irkutskaya oblast, Buryatia, Zabaikalsky
5

krai, Yakutia), Far East (Magadanskaya oblast); N and Central Europe, ?N Mongolia, Japan
(Hokkaido).
NOTES. Here E. vittaria for the first time is correctly indicated for Irkutskaya oblast.
The first author revised Eduard Berlov's collection and revealed a female identified as
"Kemtrognophos remmi Viid." from the Baikalo-Lensky Nature Reserve (Berlov & Berlov,
2006) actually is E. vittaria (referred here) and a male "Yezognophos vittaria Thnb." from
Buryatia (loc. cit.) (labeled as: "Tunkinsky loaches, near s. Mondy, 1800 m, 27.VI 1974")
actually is Charissa turfosaria (Wehrli, 1922).
Figs. 7, 8. Diagnostic characters (indicated) on the wings in Siberian species of Ourapteryx.
7 – Ourapteryx sambucaria (Linnaeus, 1758); 8 – Ourapteryx ussurica Inoue, 1993.
*Diaprepesilla flavomarginaria (Bremer, 1864)
MATERIAL. Irkutskaya oblast: Irkutsk distr., Bolshie Koty, 51º54ʹN, 105º04ʹE, 10.VII
2012, 2♂; same locality, 11.VII 2012, 1♂. [IM]; same locality, 11.VII 2007, 2♂; same loca-
lity, 27.VII 2006, 1♂, V. Shilenkov [BF].
DISTRIBUTION. Russia: S Siberia (S Irkutskaya oblast, S Buryatia, SE Zabaikalsky
krai), Far East (Amurskaya oblast, Khabarovsky krai, Primorsky krai); N and Central China,
Korea.
NOTES. The new locality of D. flavomarginaria in Irkutskaya oblast is extreme north-
western in the range of this species.
**Scardostrenia reticulata Sterneck, 1928, comb. resurr.
Fig. 2
MATERIAL. Buryatia: Dzhidinsky distr., near Bayan, 50º32ʹN, 105º15ʹE, 6.VII 2016,
2♀ [IM].
DISTRIBUTION. Russia: S Siberia (Buryatia; ?Zabaikalsky krai); China (Inner Mongolia,
Shanxi, Hebei, Beijing, Gansu, Qinghai, Sichuan).
NOTES. Wehrli (1939: 318) placed reticulata in the genus Proteostrenia, in which this
species remained up to now, by similar appearance. Nevertheless, the morphology of reticu-
lata does not correspond to Proteostrenia. The systematic position of this species requires
an additional research. The reticulata is a type species of the generic name Scardostrenia, and
6

provisionally we restore the original combination Scardostrenia reticulata Sterneck, 1928,
comb. resurr. Accordingly, the name Scardostrenia Sterneck, 1928, stat. n., is removed
from synonymy with the name Proteostrenia Warren, 1895. Taxon Proteostrenia reticulata
transbaicalensis Wehrli, 1939, was described based on a single male labeled as
“Novorotnaja, Schilka-Fluß, 2000 m, im Juli" [Zabaikalsky krai, ~ 35 km NW of Pokrovka
village, 53º30ʹN, 121º03ʹE, Povorotnaya post house, not existing since the end of the 19th
century]. The label content is not correct, as the specified area lacks mountains higher than
1000 meters, and the presence of this southern species in this deeply boreal region on at such
heights seems unlikely. Similarly, a holotype of Erannis bajaria var. transbaikalica Wehrli,
1928 possesses the identical label, while the actual finds of Cryopega bajaria ([Denis et
Schiffermüller], 1775) are unknown east of Altai. Apparently, in both cases an erroneous
labeling took place. Notably, Nothomiza submediostrigata Wehrli, 1939, which holotype is
labeled as "Transbaicalien or. mer., Tschikoi-Fluss [Chikoi River], 800 m, Juli", is still
known only from the southern provinces of China (Hunan, Guangdong and Hainan). Since
the newly discovered locality of S. reticulata is nearby the Chikoi River, an erroneous
holotype labeling of N. submediostrigata by the label actually belonging to the holotype of P.
reticulata transbaicalensis is not excluded. Differences in appearance between the type
specimens of transbaicalensis and nominative reticulata from Sichuan (see Sterneck, 1928:
188, Pl. 4, Fig. 39) are insignificant. Thus, the question on the true type locality and taxono-
mic status of P. reticulata transbaicalensis remains open, but the occurrence of this species
in the northeast of Transbaikalia is doubtful.
*Phigalia djakonovi Moltrecht, 1933
MATERIAL. Irkutskaya oblast: Irkutsk distr., 12 km S of Irkutsk, Lavrentievo non-
commercial gardening partnership, 52º08ʹN, 104º18ʹE, 24.IV 2015, 2♂ [IM].
DISTRIBUTION. Russia: SW and S Siberia (Omskaya oblast, Novosibirskaya oblast,
Kemerovskaya oblast, Altaisky krai, Altai Republic, Irkutskaya oblast, Zabaikalsky krai), Far
East (Amurskaya oblast, Khabarovsky krai, Primorsky krai); NE China, Japan (Hokkaido,
Honshu).
NOTES. The find of Ph. djakonovi in Irkutskaya oblast reduces the Baikalian gap in the
range of this species.
***Abraxas karafutonis Matsumura, 1925
Figs 3, 12
MATERIAL. Irkutskaya oblast: Nizhneudinsky distr., 13 km N of Nizhneudinsk,
Ukovsky waterfall, 55º01ʹN, 98º58ʹE, 8.VII 2015 1♀, L. Krasilnikov [ZIN]; Buryatia:
Kabansky distr., 14 km E of Vydrino, Rechka Vydrinaya, 51º28ʹN, 104º51ʹE, 26.VII 2014,
1♀; same locality, 24.VII 2014, 2♀; same locality, 19.VII 2014, 1♀ [IM].
DISTRIBUTION. Russia: S Siberia (S Irkutskaya oblast, S and W Buryatia, S Zabai-
kalsky krai), Far East (Amurskaya oblast, Khabarovsky krai, Primorsky krai, Sakhalin
Island); N Korea, N and NE China.
NOTES. Specimens A. karafutonis from south of Irkutskaya oblast (Bolshoye Golous-
tnoye village, Maloe Goloustnoye village) and extreme west of Buryatia (Sagan Shuluta
River) from the Rando Müller collection are illustrated on the Lepiforum (Kettner, 2018).
Localities of this species near Nizhneudinsk and on Sagan Shuluta River are extreme northwes-
tern in its range. The female genitalia of the species are illustrated for the first time (Fig. 12).
7

***Lomaspilis nigrita Heydemann, 1936
MATERIAL. Irkutskaya oblast: Slyudyansky distr., Snezhnaya River valley, near Vyd-
rino, 51º24ʹN, 104º38ʹE, 21.VI 2016, 1♂. Buryatia: Kabansky distr., 14 km E of Vydrino,
Rechka Vydrinaya, 51º28ʹN, 104º51ʹE, 16.VII 2014, 1♂ [IM].
DISTRIBUTION. Russia: European part (N and midland), Ural, W Siberia, S Siberia
(Kemerovskaya oblast, Altaisky krai, S Krasnoyarsky krai, Irkutskaya oblast, Buryatia,
?Zabaikalsky krai), Far East (Amurskaya oblast, Khabarovsky krai, Primorsky krai, Sakhalin
Island, Kunashir Island); Finland, Baltic countries, Belarus, Poland, Slovakia, Austria, Japan
(Hokkaido, Honshu).
NOTES. Due to establishment of L. nigrita as an independent species distinct from Lo-
maspilis opis Butler, 1878 (Beljaev, 2016), indications of the latter for Southern Siberia
(Vasilyeva, 1989; Berlov & Berlov 2006; Gordeeva & Gordeev, 2007) require a revision.
They should be probably attributed to L. nigrita.
*Narraga fasciolaria (Hufnagel, 1767)
Narraga fasciolaria: Mironov et al. 2008: 195 (region 26: "?")
MATERIAL. Irkutskaya oblast: Dzhidinsky distr., near Bayanday, 53º01ʹN, 105º29ʹE,
12.VI.2016, 1♂; Olkhonsky distr., 6 km SW of Elantsy, 52º47ʹN, 106º20ʹE, 7–8.VI 2018, 3♂
[IM].
DISTRIBUTION. Russia: European part, N Caucasus, Ural, SW Siberia, S Siberia (Al-
taisky krai, S Krasnoyarsky krai, Altai Republic, Tyva, Irkutskaya oblast, Buryatia, Zabaikalsky
krai), Far East (Amurskaya oblast, Khabarovsky krai, Primorsky krai); Central and E Europe,
Kazakhstan, NW and N China, Mongolia, Korea.
NOTES. Here N. fasciolaria for the first time is reliably given for Irkutskaya oblast. The
moths match with nominative subspecies from Europe. The find of this species in Irkutskaya
oblast closes the gap in its range.
*Digrammia rippertaria (Duponchel, 1830)
MATERIAL. Irkutskaya oblast: Olkhonsky distr., 6 km SW of Elantsy, 52º47ʹN,
106º20ʹE, 11.VI 2016, 2♂; same locality, 7–8.VI 2018, 2♂ [IM].
DISTRIBUTION. Russia: S European part, Ural, SW Siberia, S and E Siberia (Altaisky
krai, Altai Republic, Tyva, Irkutskaya oblast, Buryatia, Zabaikalsky krai, W and S Yakutia),
Far East (Magadanskaya oblast, Amurskaya oblast); S Europe, S Ukraine, Turkey, Kazakhstan,
Middle Asia, Mongolia, NW China, N America.
NOTES. The find of D. rippertaria in Irkutskaya oblast closes the gap in the range of this
species.
Chiasmia saburraria (Eversmann, 1851)
Fidonia saburraria Eversmann, 1851: 640.
Chiasmia saburraria: Mironov et al. 2008: 195 (region 26: "?")
MATERIAL. Irkutskaya oblast: Olkhonsky distr., Baikalo-Lensky Nature Reserve,
Lake Baikal shore, Cape Bolshoi Solontsovyi, 54º10ʹN, 108º20ʹE, 27.VI 2004, 1♀ (O.
Berlov) [EB]; Cheremkhovsky distr., Malaya Belaya River valley, Pomortseva, 52º49ʹN,
102º48ʹE, 12.VI 2015, 1♂ [IM].
DISTRIBUTION. Russia: S Ural, W Siberia, S Siberia (Altaisky krai, Altai Republic, S
Krasnoyarsky krai, Tyva, Irkutskaya oblast, Buryatia, Zabaikalsky krai), Far East (Amurskaya
oblast, Primorsky krai); Mongolia, NE China.
8

NOTES. Distribution of Ch. saburraria in Irkutskaya oblast is confirmed. The species
was described from Irkutsk (Eversmann, 1851), but in Mironov et al. (2008) it was given for
the region under the question in view of absence of materials after the description.
SubfamilyGeometrinae
**Thetidia chlorophyllaria (Hedemann, 1878)
MATERIAL. Buryatia: Dzhidinsky distr., Lake Nizhnee Beloe, near Beloozyorsk,
50º35ʹN, 105º45ʹE, 3.VII 2016, 1♀; Dzhidinsky distr., 14 km SE of Petropavlovka settle-
ment, Malyi Tasarkhai base, 50º31ʹN, 105º29ʹE, 8–9.VII 2016, 4♂, 1♀; same locality, 12–
13.VII 2018, 2♀ [IM].
DISTRIBUTION. Russia: S Siberia (S Krasnoyarsky krai, S Irkutskaya oblast, Buryatia,
Zabaikalsky krai), Far East (Amurskaya oblast, Khabarovsky krai, Primorsky krai);
Mongolia, China, Korea.
NOTES. The find of Th. chlorophyllaria in Buryatia closes the gap in the range of this
species in Siberia.
Subfamily Larentiinae
*Lithostege farinata (Hufnagel, 1767)
Figs 4, 13–15
Lithostege onkhoica [sic!]: Berlov & Berlov, 2006: 106 (nec onсhoica Vasilenko & Gor-
deeva, 2004).
MATERIAL. Irkutskaya oblast: Cheremkhovsky distr., Malaya Belaya River valley,
Pomortseva, 52º49ʹN, 102º48ʹE, 12.VI 2015, 1♂, 2♀; Ekhirit-Bulagatsky distr., near Ust-
Ordynsky, 52º44ʹN, 104º44ʹE, 4.VI 2011, 1♀; same locality, 8.VI 2016, 4♂; Irkutsk distr., 5
km E of Irkutsk, Pilot gardening association, 52º18ʹN, 104º25ʹE, 14.VIII 2009, 1♀; Irkutsk
distr., Bolshie Koty, 51º54ʹN, 105º04ʹE, 4.VII 2010, 1♀; Irkutsk distr., 12 km S of Irkutsk,
Lavrentievo non-commercial gardening partnership, 52º08ʹN, 104º18ʹE, 19.VI 2011, 1♂;
same locality, 19.VI 2012, 3♀; Olkhonsky distr., 6 km SW of Elantsy, 52º47ʹN, 106º20ʹE, 7–
8.VI 2018, 1♂ [IM]; Ekhirit-Bulagatsky distr., Kharat, 52º45ʹN, 105º03ʹE, 11.VI 2002, 1♀;
Usolsky distr., Belorechensky, 52º48ʹN, 103º31ʹE, 17.VII 2010, 1♀; Irkutsk distr., 10 km E
of Irkutsk, Goloustnensky highway, Fakel gardening association, 52º16ʹN, 104º31ʹE, 29.VI
2006, 1♂; same locality, 30.VI 2002, 1♀, E. Berlov [EB]; Shelekhovsky distr., 40 km SW of
Irkutsk, Podkamennaya station, 51º57ʹN, 103º54ʹE, 26.VI 2007, 1♀, V. Shilenkov [BF].
DISTRIBUTION. Russia: midland and S European part (midland and S), N Caucasus,
Ural, W Siberia, S Siberia (Kemerovskaya oblast, Altaisky krai, Altai Republic, Khakassia, S
Irkutskaya oblast, Buryatia); Central, E and SE Europe, ?Turkey, ?Transcaucasus.
NOTES. Formerly L. farinata was reported from "Southern Siberia" (Viidalepp, 1978:
757) and from Khakassia (Korshunov & Viidalepp, 1982: 105) as subspecies L. farinata
bachmutensis Prout, 1938, which was described from the east of Ukraine. The examined
specimens from Irkutsk region are close to the Central European L. farinata both in the
external features and the genitalia structure.
*Acasis viretata (Hübner, [1799])
MATERIAL. Irkutskaya oblast: Slyudyansky distr., Snezhnaya River valley, near Vyd-
rino, 51º24ʹN, 104º38ʹE, 21.VI 2016, 1♀ [IM].
9

DISTRIBUTION. Russia: European part, N Caucasus, Ural, S Siberia (Novosibirskaya
oblast, Altaisky krai, Irkutskaya oblast, Buryatia), Far East (Amurskaya oblast, Khabarovsky
krai, Primorsky krai, Sakhalin Island, Kunashir Island); Europe, Transcaucasus, Korea, China,
Japan, Northeast India, Nepal, Myanmar.
Figs. 9–15. The genitalia. 9–11 – Ourapteryx ussurica Inoue, 1993, male genitalia (9 –
ventral view, 10 – fallus, 11 – distal portion of fallus with vesica everted); 12 – Abraxas
karafutonis Matsumura, 1925, female genitalia; 13, 14 – Lithostege farinata (Hufnagel,
1767), male genitalia (13 – ventral view, 14 – fallus); 15 – Lithostege farinata (Hufnagel,
1767), female genitalia.
10

NOTES. The find of A. viretata in Irkutskaya oblast reduces the South Siberian gap in
the range of the species.
Figs. 16–23. The genitalia. 16–19 – Rheumaptera neocervinalis Inoue, 1982, male
genitalia (16 – ventral view, 17 – uncus, 18 – fallus, 19 – fallus with vesica everted); 20 –
Rheumaptera neocervinalis Inoue, 1982, female genitalia; 21 – Horisme scotosiata (Guenée,
1858), female genitalia; 22, 23 – Horisme scotosiata (Guenée, 1858), male genitalia (22 –
ventral view, 23 – fallus).
11

***Rheumaptera neocervinalis Inoue, 1982
Figs 5, 16–20
Rheumaptera cervinalis (nec Scopoli, 1736): Viidalepp, 1977: 570; Berlov & Berlov
2006: 105.
MATERIAL. Irkutskaya oblast: Irkutsk distr., 12 km S of Irkutsk, Lavrentievo non-
commercial gardening partnership, 52º08ʹN, 104º18ʹE, 11.VI 2012, 1♂; same locality, 15.V
2012, 2♀; same locality, 17.VI 2012, 1♂; same locality, 1.VI 2013, 1♂; same locality, 28.V
2018, 2♂; same locality, 31.V 2018, 2♂, 1♀; same locality, 14.VI 2018, 1♂; Irkutsk distr., 5
km E of Irkutsk, Pilot gardening association, 52º18ʹN, 104º25ʹE, 29.V 2009, 1♂; same loca-
lity, 1.VI 2010, 3♂ [IM].
DISTRIBUTION. Russia: S Siberia (S Irkutskaya oblast), Far East (Amurskaya oblast,
Khabarovsky krai, Primorsky krai); ?Mongolia (Töw Aimag), Korea, Japan (Hokkaido,
Honshu).
NOTES. Rh. cervinalis is reported from Siberia for the first time. The male and female
genitalia of Rh. neocervinalis from Irkutskaya oblast (Figs 16–20) are conspecific with those
from Primorsky krai, Korea and Japan (Choi, 2013: Figs 73, 124, 175). Previously the
species has been wrongly recorded as Rh. cervinalis (Viidalepp, 1977; Berlov & Berlov
2006). Besides, Viidalepp (1975: 454) listed "Calocalpe cervinalis" for the north of Mon-
golia (Töw Aimag, 75 km North of Ulaanbaatar, Noyon Uul, Suzukteh valley) but later he
mentioned it as "Hydria hedemannaria" under the question (Viidalepp, 1996: 30 – "Mon-
golia?"). Beljaev (2016: 625) supposed this reference may belong to Rh. neocervinalis.
*Perizoma bifaciata (Haworth, 1809)
MATERIAL. Irkutskaya oblast: Irkutsk distr., 12 km S of Irkutsk, Lavrentievo non-
commercial gardening partnership, 52º08ʹN, 104º18ʹE, 2.VIII 2011, 1 ex.; same locality,
21.VIII 2010, 1 ex.; same locality, 31.VII 2011, 2 ex.; same locality, 6.VIII 2016, 1♀ [IM].
DISTRIBUTION. Russia: European part, N Caucasus, Ural, SW Siberia, S Siberia
(Altaisky krai, Altai Republic, Irkutskaya oblast); Europe, Morocco, Turkey, Cyprus, Tran-
scaucasus, N Kazakhstan, Mongolia (Khovd Aimag), ?Korea.
NOTES. The new locality of P. bifaciata is extreme eastern in the range of this species.
Actual distribution of this species in Korea from which it was referred recently by single
specimen (Tóth et al., 2018) need to be confirmed.
*Chloroclystis v-ata (Haworth, 1809)
MATERIAL. Irkutskaya oblast: Slyudyansky distr., Snezhnaya River valley, near Vyd-
rino, 51º24ʹN, 104º38ʹE, 20.VI 2016, 1♂ [IM].
DISTRIBUTION. Russia: European part, N Caucasus, Ural, SW Siberia, S Siberia
(Altaisky krai, Altai Republic, S Krasnoyarsky krai, Irkutskaya oblast), Far East (Amurskaya
oblast, Khabarovsky krai, Primorsky krai, Sakhalin Island, Kunashir Island); Europe, Turkey,
Transcaucasus, N Iran, Kazakhstan, Korea, Japan.
NOTES. The find of Ch. v-ata in Irkutskaya oblast somewhat reduces the South Siberian
gap in the range of this species.
***Pasiphila debiliata (Hübner, [1817]
MATERIAL. Irkutskaya oblast: Irkutsk distr., 12 km S of Irkutsk, Lavrentievo non-
commercial gardening partnership, 52º08ʹN, 104º18ʹE, 8.VII 2011, 1♂; same locality, 15.VII
2015, 3♂; Kazachinsko-Lensky distr., Kirenga River valley, Konets-Lug, 56º18ʹN, 107º36ʹE,
30.VII 2012, 1♂ [IM]. Buryatia: Kabansky distr., Enkheluk, 52º28ʹN, 106º56ʹE, 22.VII 2011,
12

1♀; Pribaikalsky distr., Selenga River valley, 3 km SE of Mostovka, 52º07ʹN, 107º01ʹE,
28.VI 2015, 4♂; Kabansky distr., 14 km E of Vydrino, Rechka Vydrinaya, 51º28ʹN,
104º51ʹE, 20.VII 2014, 1♀ [IM].
DISTRIBUTION. Russia: European part, ?N Caucasus, Ural, W Siberia, S Siberia
(Altaisky krai, Altai Republic, Irkutskaya oblast, Buryatia), Far East (Amurskaya oblast,
Khabarovsky krai); Europe, Japan, Korea.
NOTES. The find of Ph. djakonovi in Irkutskaya oblast and Buryatia reduces the South
Siberian gap in the range of this species.
*Eupithecia jezonica Matsumura, 1927
MATERIAL. Irkutskaya oblast: Olkhonsky distr., Baikalo-Lensky Nature Reserve,
Lake Baikal shore, Cape Bolshoi Solontsovyi, 54º10ʹN, 108º20ʹE, 31.VII 2005, 1♀, O.
Berlov [EB].
DISTRIBUTION. Russia: SW and S Siberia (Omskaya oblast, Altaisky krai, Altai Re-
public, Tyva, Irkutskaya oblast, Zabaikalsky krai), Far East (Amurskaya oblast, Khabarovsky
krai, Primorsky krai); E Kazakhstan, China, Taiwan Island, Korea, Japan, N India, Nepal.
NOTES. The species was recently discovered in the Omsk region (Knyazev & Mironov,
2015), where apparently the western border of its range lies.
NOTES. The find of E. jezonica in Irkutskaya oblast reduces the South Siberian gap in
the range of this species.
*Eupithecia analoga Djkonov, 1926
MATERIAL. Buryatia: Pribaikalsky distr., Selenga River valley, 3 km SE of Mostovka,
52º07ʹN, 107º01ʹE, 12.VIII 2015, 1♀ [IM].
DISTRIBUTION. Russia: European part (except south), Ural, W Siberia, S and E Siberia
(Irkutskaya oblast, Buryatia, Zabaikalsky krai, S Yakutia), Far East (Sakhalin Island); N,
Central and E Europe, Japan (Hokkaido).
NOTES. The find of E. analoga in Irkutskaya oblast closes one of the gaps in the range
of this species.
*Eupithecia fennoscandica Knaben, 1849
MATERIAL. Irkutskaya oblast: Olkhonsky distr., 6 km SW of Elantsy, 52º47ʹN,
106º20ʹE, 7–8.VI 2018, 2♂ [IM]; Olkhonsky distr., 242 km NE of Irkutsk, Lake Baikal
shore, Cape Zunduk, 53º23ʹN, 107º23ʹE, 9–12.VI 2014, 1♂, E. Berlov [EB]. Buryatia:
Okinsky distr., Barom-Gol river upstream, 40 km NW of Kyren, 51º54ʹN, 101º37ʹE, 20.VI
2018, 1♂ [IM].
DISTRIBUTION. Russia: N European part, Polar Ural, NW Siberia, S and E Siberia
(Altaisky krai, Altai Republic, Irkutskaya oblast, Zabaikalsky krai, S Yakutia), Far East
(Magadanskaya oblast); Europe (N Fennoscandia), N Mongolia.
NOTES. The find of E. fennoscandica in Irkutskaya oblast closes one of the gaps in the
range of this species.
**Eupithecia dissertata (Püngeler, 1905)
MATERIAL. Buryatia: Okinsky distr., 40 km W of Orlik, Sentsa River valley, 52º35ʹN,
99º14ʹE, 25.VII 2013, 1♀ [IM].
DISTRIBUTION. Russia: S Siberia (Altai Republic, Tyva, Irkutskaya oblast, Buryatia,
Zabaikalsky krai), Far East (Magadanskaya oblast, Khabarovsky krai); Central Europe (moun-
tains), SE Kazakhstan, Mongolia, China (N and Tibet).
13

NOTES. The find of E. dissertata in Buryatia closes the South Siberian gap in the range
of this species.
*Eupithecia extensaria (Freyer, 1844)
MATERIAL. Irkutskaya oblast: Ekhirit-Bulagatsky distr., near Ust-Ordynsky, 52º44ʹN,
104º44ʹE, 8.VI 2016, 4♂ [IM].
DISTRIBUTION. Russia: European part, N Caucasus, S Ural, W Siberia, S Siberia (S
Krasnoyarsky krai, Altaisky krai, Altai Republic, Tyva, Irkutskaya oblast, Buryatia, Zabai-
kalsky krai), Far East (Amurskaya oblast, Khabarovsky krai, Primorsky krai); Europe, Turkey,
Transcaucasus, Kazakhstan, N Kyrgyzstan, Mongolia, NW and N China, Korea, Japan (Hok-
kaido, Honshu).
NOTES. The find of E. extensaria in Irkutskaya oblast closes the South Siberian gap in
the range of this species.
*Eupithecia thalictrata (Püngeler, 1902)
Eupithecia thalictrata: Mironov et al. 2008: 224 (region 26: "?")
MATERIAL. Irkutskaya oblast: Irkutsk distr., Ushakovka River valley, 10 km E of
Irkutsk, near Rodnik gardening association, 52º17ʹN, 104º29ʹE, 13.VI 2016, 1♀; Olkhonsky
distr., hills in env. of Maloe More, near Chernorud, 53º00ʹN, 106º49ʹE, 10.VI 2016, 1♂;
Olkhonsky distr., 6 km SW of Elantsy, 52º47ʹN, 106º20ʹE, 7.VI 2018, 1♀; Irkutsk distr., 12
km S of Irkutsk, Lavrentievo non-commercial gardening partnership, 52º08ʹN, 104º18ʹE,
15.VI 2018, 1♂ [IM].
DISTRIBUTION. Russia: European part (midland), Ural, SW, S and E Siberia (Omskaya
oblast, Altai Republic, Irkutskaya oblast, Zabaikalsky krai, S Yakutia), Far East (Amurskaya
oblast, Khabarovsky krai, Primorsky krai, Sakhalin Island, Kunashir Island); Europe (Baltic
countries, mountains of Central Europe), North Kazakhstan, North Mongolia, China, Japan
(Hokkaido).
NOTES. Here E. thalictrata for the first time is reliably given for Irkutskaya oblast. The
find of this species in Irkutskaya oblast reduces the South Siberian the gap in its range.
**Eupithecia millefoliata (Rössler, 1866)
MATERIAL. Buryatia: Pribaikalsky distr., Selenga River valley, 3 km NE of Ilyinka,
Senokosnyi Island, 52º08′N, 107º19′E, 28.VI 2015, 1♂ [IM].
DISTRIBUTION. Russia: European part, N Caucasus, Ural, SW Siberia, S Siberia (Al-
taisky krai, Altai Republic, Tyva, Irkutskaya oblast, Buryatia); Europe, Morocco, Turkey,
Transcaucasus, Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan.
NOTES. The new locality of E. millefoliata in Irkutskaya oblast is extreme eastern in the
range of this species.
*Horisme scotosiata (Guenée, 1858)
Figs 6, 21–23.
Horisme scotosiata: Mironov et al. 2008: 219 (region 26: "?")
MATERIAL. Irkutskaya oblast: Irkutsk, 4.IX 1970, 1♂, E. Berlov; Kachugsky distr.,
Baikalo-Lensky Nature Reserve, Shurimnaya cordon, 53º50′N, 107º04′E, 10.VII 2013, 1♂;
same locality, 10.VIII 2013, 2♂, O. Berlov [EB]; Irkutsk, 30.VII 1907, 1 ex., Shchegolkov
[BF]; Kazachinsko-Lensky distr., Tukolon landscape reserve, 54º30ʹN, 107º36ʹE, 3.VIII 2014, 1
ex., L. Fedorova; Irkutsk distr., Bolshie Koty, 51º54ʹN, 105º04ʹE, 3.VIII 2016, 1♂ [IM].
14

DISTRIBUTION. Russia: S and E Siberia (Kemerovskaya oblast, Altai Republic, S
Krasnoyarsky krai, Tyva, Irkutskaya oblast, Buryatia, Zabaikalsky krai, S Yakutia), Far East
(Amurskaya oblast, Khabarovsky krai, Primorsky krai, Sakhalin Island); NE Kazakhstan,
Mongolia, China (N and Tibet), Korea, Japan.
NOTES. Here H. scotosiata for the first time is reliably given for Irkutskaya oblast. The
find of this species closes the gap in its range. The male and female genitalia of this rare
species are illustrated (Figs 21–23). By appearance, moths of H. scotosiata can be confused
with similar Siberian species, Horisme falcata (Bang-Haas, 1907).
*Anticollix sparsata (Treitschke, 1828)
MATERIAL. Irkutskaya oblast: Irkutsk distr., 5 km E of Irkutsk, Pilot gardening
association, 52º18ʹN, 104º25ʹE, 23.VI 2010, 1♂; Slyudyansky distr., Snezhnaya River
valley, near Vydrino, 51º24ʹN, 104º38ʹE, 21.VI 2016, 1♂ [IM].
DISTRIBUTION. Russia: European part, Ural, SW Siberia, S Siberia (Altaisky krai,
Altai Republic, S Krasnoyarkii krai, Irkutskaya oblast, Buryatia, Zabaikalsky krai), Far East
(Khabarovsky krai, Primorsky krai, Sakhalin Island); Europe, Korea, Japan (Hokkaido, Hon-
shu).
NOTES. In addition to the specimens listed above, a photo of A. sparsata, taken by E.
Bayandina in the vicinity of Irkutsk on July 12.VII 2014, is deposed on the website “Nature
of Baikal” (Bayandina, 1014). The find A. sparsata of in Irkutskaya oblast closes the gap in
the range of this species.
Subfamily Sterrhinae
*Scopula virginalis (Fourcroy, 1785)
Scopula virginalis: Mironov et al. 2008: 209 (region 26: "?")
MATERIAL. Irkutskaya oblast: Irkutsk, 21.VII 2009, 1♀, E. Berlov [EB]; Angarsky
distr., 20 km SW of Angarsk, Galaktika tourist camp, 52º25ʹN, 103º37ʹE, 9.VIII 2013, 1♀;
Irkutsk distr., 12 km S of Irkutsk, Lavrentievo non-commercial gardening partnership,
52º08ʹN, 104º18ʹE, 10.VIII 2011, 1 ex., 14.VII 2013, 1 ex., 22.VIII 2013, 1♀ [IM].
DISTRIBUTION. Russia: NW European part, Ural, W Siberia, S Siberia (Kemerovskaya
oblast, Altaisky krai, Altai Republic, Khakassia, S Irkutskaya oblast, Buryatia, Zabaikalsky
krai), Far East (Amurskaya oblast, Khabarovsky krai, Primorsky krai, Kunashir Island);
Europe (except S), Central China, Korea, Japan (Hokkaido).
NOTES. Here S. virginalis for the first time is reliably given for Irkutskaya oblast. The
examined specimens belong to subspecies S. virginalis nivearia (Leech, 1897), which
spreads from Ural to Japan (Beljaev, 2016). The find of this species in Irkutskaya oblast
closes the South Siberian gap in its range.
*Scopula floslactata (Haworth, 1809)
Scopula floslactata: Mironov et al. 2008: 208 (region 26: "?")
MATERIAL. Irkutskaya oblast: Olkhonsky distr., Baikalo-Lensky Nature Reserve,
Lake Baikal shore, Cape Bolshoi Solontsovyi, 54º10ʹN, 108º20ʹE, 27.IV 2004, 1♂;
Kachugsky distr., Baikalo-Lensky Nature Reserve, Baikal Range, Isumrudnoe lake, 54º04ʹN,
108º10ʹE, 25.VI 2004, 1♀, O. Berlov [EB]; Slyudyansky distr., Snezhnaya River valley, near
Vydrino, 51º24ʹN, 104º38ʹE, 8.VII 2013, 2 ex., 09.VII 2013, 2 ex., 21.VI 2016, 2♂;
15

Pribaikalsky distr., Selenga River valley, 3 km SE of Mostovka, 52º07ʹN, 107º01ʹE, 24–
25.VI 2016, 2 ex.; Irkutsk distr., Ushakovka River valley, 10 km E of Irkutsk, near Rodnik
gardening association, 52º17ʹN, 104º29ʹE, 13.VI 2016, 1 ex. [IM].
DISTRIBUTION. Russia: European part, Ural, W Siberia, S and E Siberia (Kemerovskaya
oblast, Altaisky krai, Altai Republic, S Krasnoyarsky krai, Tyva, Irkutskaya oblast, Buryatia,
Zabaikalsky krai, S Yakutia,), Far East (Amurskaya oblast, Khabarovsky krai, Primorsky
krai, Sakhalin Island, Kunashir Island); Europe, Mongolia, N and NE China, Korea, Japan.
NOTES. Here S. floslactata for the first time is reliably given for Irkutskaya oblast. The
find of this species in Irkutskaya oblast closes the South Siberian gap in its range.
Timandra griseata W. Petersen, 1902
Timandra griseata: Vasilyeva, 1989: 105 (Irkutsk, Turgenevka).
MATERIAL. Irkutskaya oblast: Kazachinsko-Lensky distr., Kirenga River valley,
Konets-Lug, 56º18ʹN, 107º36ʹE, 29.VII 2012, 1♂; Irkutsk distr., 5 km E of Irkutsk, Pilot
gardening association, 52º18ʹN, 104º25ʹE, 7.VII 2008, 1♂; Irkutsk distr., Bolshie Koty,
51º54ʹN, 105º04ʹE, 4.VII 2010, 1♂ [IM]; Irkutsk, 18.VI 2004, 1 ex.; same locality, 10.VII
2004, 1♂; Irkutsk distr., 10 km E of Irkutsk, Goloustnensky highway, Fakel gardening
association, 52º16ʹN, 104º31ʹE, 14.VII 2006, 1♂ (E. Berlov) [EB]; Shelekhovsky distr., 40
km SW of Irkutsk, Podkamennaya station, 51º57ʹN, 103º54ʹE, 10.VII 2010, 1♂; same
locality, 16.VII 2011, 1♂, 1♀; same locality, 7.VII 2007, 1♂, V. Shilenkov [BF].
DISTRIBUTION. Russia: N European part, Ural, S and E Siberia (Altaisky krai, Altai
Republic, S Krasnoyarsky krai, Irkutskaya oblast, Buryatia, S Yakutia); N Europe.
NOTES. The distribution of the species in Irkutskaya oblast is confirmed. The specimens
were verified with DNA barcoding in view the recognition of two sibling species T. griseata
and Timandra comae A. Schmidt, 1931, by morphology is difficult.
GEOMETRIDAE DUBIOUS FOR THE FAUNA OF THE BAIKAL REGION
Selenia lunularia (Hubner, 1788)
Selenia bilunaria Esper, [1801]: Belova, 1988: 21; Belova, 2000: 27.
NOTES. S. lunularia is not known east of Altai. Judging from the same collecting date
"Juli 1982", later the species was redetermined as Selenia dentaria (Fabricius, 1775) (Miro-
nov & Belova, 2015).
Ennomos quercinaria (Hufnagel, 1767)
Ennomos quercinaria: Vasilyeva, 1989: 112;
NOTES. The species is not known east of the S Ural.
Ourapteryx persica (Ménétriès, 1832)
Ourapteryx persica: Vasilyeva & Epova, 1987: 71.
NOTES. Distribution of this species is limited to E Transcaucasia and N Iran.
Ourapteryx sambucaria (Linnaeus, 1758)
Ourapteryx sambucaria: Mironov & Belova, 2015: 60.
NOTES. Judging from the same collecting date "15.07.1992", the species was redeter-
mined as Ourapteryx ussurica Inoue, 1993 (Belova, 2015).
16

Pungeleria capreolaria ([Denis et Schiffermüller], 1775)
Pungeleria capreolaria: Vasilyeva, 1989: 112;
NOTES. The species is not known east of the Carpathians and Turkey.
Erannis defoliaria (Clerck, 1759)
Erannis defoliaria: Belova, 1986: 88; Belova, 2013: 190.
NOTES. The species is not known east of the Urals. N.A. Belova notes E. defoliaria
from the Baikal Reserve in a number of publications from with the first and last ones are
cited above. Obviously, later this species was redetermined as Erannis jacobsoni (Djakonov,
1926) (Mironov & Belova, 2015).
Biston strataria (Hufnagel, 1767)
Biston stratarius: Vasilyeva, 1989: 112.
NOTES. The species is not known east of the south of Krasnoyarsky krai. Distribution of
the species in the Baikal region is not excluded, but has to be confirmed.
Peribatodes rhomboidaria ([Denis et Schiffermüller], 1775)
Peribatodes rhomboidaria: Vasilyeva, 1989: 111.
NOTES. The species is not known east of the South Ural.
Isturgia roraria (Fabricius, [1776])
Isturgia roraria: Belova, 2003: 88; Belova, 2009: 154.
NOTES. The species is not known east of the South Ural.
Cataclysme riguata (Hübner, [1813])
Cataclysme riguata: Belova, 2005: 272.
NOTES. The species is not known east of Altai.
Xanthorhoe annotinata (Zetterstedt, 1839)
Xanthorhoe annotinata: Vasilyeva, 1989: 107.
NOTES. The species is not known east of north-east of European part of Russia; another
species from the X. annotinata species group are distributed in the Baikal region.
Epirrhoe molluginata (Hübner, 1813)
Cidaria molluginata Belova, 1986: 87; Belova, 1988: 20.
Epirrhoe molluginata: Belova, 2000: 25; Belova, 2009: 153.
NOTES. The species is not known east of middle Volga.
Epirrhoe galiata ([Denis et Schiffermüller], 1775)
Epirrhoe galiata: Vasilyeva, 1989: 107.
NOTES. The species is not known east of the Urals.
17

Pennithera firmata (Hübner, [1822])
Thera firmata: Belova, 2005: 272.
NOTES. The species is not known east of the S Ural. Judging from the same collecting
date "25.07.[20]01", later the species was redetermined as Thera obeliscata (Hübner, [1787])
(Mironov & Belova, 2015).
Thera cognata (Thunberg, 1792)
Thera cognata: Belova, 2000: 26; Belova, 2003: 87; Belova, 2008: 46.
NOTES. Nearest localities of Th. cognata are known from the west of European part of
Russia and form Caucasus.
Eupithecia impurata (Hübner, 1813)
Eupithecia impurata: Belova, 2000: 26; 2003: 87.
NOTES. Central European species which is unknown east of Carpathians.
Eupithecia irriguata (Hübner, [1813])
Eupithecia irriguata: Belova, 2003: 89.
NOTES. Nearest localities of E. irriguata are known from Caucasus.
Horisme intricata (Staudinger, 1882)
Horisme intricata: Belova, 2005: 272.
NOTES. The wrong definition of the specimen of Horisme incurvaria (Erschoff, 1877),
which photo is published on the site "1000 Siberian Butterflies and Moths" (Berlov & Ber-
lov, 1999–2014).
Idaea deversaria (Herrich-Schäffer, 1847)
"S[copula] deserticola H.-S.": Belova, 2000: 25;
Sterrha deversaria: Belova, 2003: 88.
NOTES. The species is not known east of the Urals. Probably, the "S. deserticola H.-S."
(Belova, 2000) is erroneous spelling of the "Sterrha deversaria H.-S." (Belova, 2003).
Idaea ochrata (Scopoli, 1763)
Sterra ochrata: Belova, 2005: 272.
NOTES. The species is not known east of the S Urals.
Idaea seriata (Schrank, 1802)
Sterrha seriata: Vasilyeva, 1989: 105.
NOTES. The species is not known east of the Volga region.
Idaea serpentata (Hufnagel, 1767)
Idaea serpentata: Berlov & Berlov, 2006: 102; Belova, 2012: 42; Belova, 2015: 220;
Mironov & Belova, 2015: 61.
18

NOTES. The two vicarious species, West Palaearctic I. serpentata and East Palaearctic I.
dohlmanni, are almost identical on appearance and definitely distinguishable only by the
genitalic structure, that results to numerous misidentification of the last species as first one
(Viidalepp, 1987; Burnasheva, Beljaev, 2011). All studied specimens of "I. serpentata" from
Irkutskaya oblast, deposited in the collections of Zoological Institute (materials by I. Ko-
zhanchikov – 3♂♂, and S. Rodionov – 2♂♂), Biological Faculty of Irkutsk State University
(11♂♂) and Siberian Institute of Plant Physiology and Biochemistry (8♂♂) actually belong
to I. dohlmanni. No samples of I. serpentata were also detected in the author's materials from
Baikal region (11♂♂, 1♀). Thus, the eastern range limit of I. serpentata is presumably laid
to the west of the Baikal region.
Cyclophora pendularia (Clerck, 1759)
? Ephyra pendularia: Tshugunov, 1914: 316.
Cosymbia pendularia: Djakonov, 1926: 22; Viidalepp, 1979: 88; Korshunov & Viida-
lepp, 1980: 46; Belova, 1986: 88.
Cyclophora pendularia: Belova, 1988: 19; Vasilyeva, 1989: 105; Mironov et al., 2008:
210 (the regions 22–25, 27); Mironov & Belova, 2015: 61.
NOTES. Actually true C. pendularia is not known east of the West Siberian Plain. All
records of "Cyclophora pendularia" or "Cosymbia pendularia" east of the region are
evidently based on the Geometra pendularia sensu [Denis & Schiffermüller], 1775 (nec
Clerck, 1759), which is misidentification of Cyclophora albipunctata (Hufnagel, 1767). The
long time of history of this misidentification results to numerous misunderstanding. In the
referring list above the references containing materials are given only (excepting the
Mironov et al., 2008). Among the publications of N.A. Belova with indication of the "C.
pendularia" in the Baikal Reserve only first and last ones are cited here.
CONCLUSION
As a result of this research 1 species (Rh. neocervinalis) was recorded in Siberia
for the first time, 3 species was reported as new for the Baikal region, 18 species –
as new for Irkutskaya oblast and 4 species – as new for Buryatia; distribution in the
Baikal region of 4 species is confirmed. For five species of geometrid moths, the
range limits are significantly extended: the eastern boundary is expanded for P.
bifaciata and E. millefoliata, and the western one – for D. flavomarginaria, A.
karafutonis and Rh. neocervinalis. In addition, the literature's referring of 23
species from region are quite dubious and we propose to exclude them from the
fauna of the Baikal region up to confirmation. Following the new data, in the Baikal
region the family Geometridae currently numbers 347 species from 153 genera and
5 subfamilies. The exploration degree of the species richness of geometrid moths in
the region is estimated to be close to 90%.
ACKNOWLEDGMENTS
The financial support for work of the first author was provided by the grants of
Russian Foundation for Basic Research № 18-04-00263а (field trips, collecting the
19

material) and Russian Science Foundation № 14-14-00541 (analysis of the materi-
al).The first author expresses his gratitude to Eduard Berlov (Irkutsk) for providing
the materials from his personal collection, to Maria Dementeva (Biological faculty,
Irkutsk State University, Irkutsk) for being great company and assistance during the
field investigations. The authors express a special gratefulness to Alexey Matov
(ZIN, St. Petersburg) for giving an opportunity to use his personal photographic
equipment. The second author thanks Sergey Vasilenko (Institute of Systematic and
Ecology of Animals, Siberian Branch of Russian Academy of Sciences, Novosibirsk)
for a number of valuable consultations. Performing the work of the second author
was sponsored partially by Russian Foundation for Basic Research, project 18-04-
00944.
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