A new species of the genus Synixais Aurivillius, 1911 (Coleoptera: Cerambycidae) from the Philippines

Abstract

Synixais anichtchenkoi sp. nov. (Coleoptera: Cerambycidae) from the Luzon island
(Philippines) is described and illustrated. The genus SynixaisAurivillius, 1911 now contains
twelve species distributed in the Oriental Region (three species are known from Luzon
island, two from Borneo, two from Laos, two from Mindanao, one from Mindoro, one
from Pahang, Malaysia, and one from Sumatra.

Full text

Baltic J. Coleopterol. 22(2) 2022
ISSN 1407 - 8619
399
A new species of the genus Synixais Aurivillius, 1911 (Coleoptera:
Cerambycidae) from the Philippines
ArvÓds Barevskis
Barevskis A. 2022. A new species of the genus Synixais Aurivillius, 1911 (Coleoptera:
Cerambycidae) from the Philippines. Baltic J. Coleopterol., 22(2): 399–402.
Synixais anichtchenkoi sp. nov. (Coleoptera: Cerambycidae) from the Luzon island
(Philippines) is described and illustrated. The genus Synixais Aurivillius, 1911 now contains
twelve species distributed in the Oriental Region (three species are known from Luzon
island, two from Borneo, two from Laos, two from Mindanao, one from Mindoro, one
from Pahang, Malaysia, and one from Sumatra.
Key words: Synixais, long-horned beetles, taxonomy, new species, Philippines, Oriental
Region.
ArvÓds Barevskis. Daugavpils University, Institute of Life Sciences and Technologies,
Coleopterological Research Center, VienÓbas Str. 13, Daugavpils, LV-5401, Latvia; e-mail:
arvids.barsevskis@du.lv
INTRODUCTION
The Oriental fauna of the long-horned beetles
(Coleoptera: Cerambycidae) is being actively
studied. Many new species from Oriental
Region are discovered every year by several
authors (Medina etal. 2021a, 2021b; Medina et
al. 2021, 2022; Skale, Vitali 2021; Vitali 2022;
Vives 2015, 2017, 2020, 2022a, 2022b; Ku-
leshov 2017; Vives, Heffern 2021; Yamasako
et al. 2021, etc.).
The genus Synixais Aurivillius, 1911 (Coleop-
tera: Cerambycidae) belong to the tribe Ptero-
pliini and represented in the world’s fauna by
twelve species, distributed in the Oriental Region,
six of them are known from the Philippine Ar-
chipelago (Tavakilian, Chevillotte2021; Roguet
2004–2021). Vives (2015) described S. apoensis
Vives, 2015, the first species of this genus from
the Philippines. Later, Barevskis (2018a, 2018b,
2019a,2019b, 2020) published new faunistic
data for this species in Mindanao. Besides that,
Barevskis (2018b) described S. willietorresi
Barevskis, 2018 from Mindanao, Zamboanga
del Norte. Later, the same author (Barevskis
2019b) described two additional species: S. min-
doroensis Barevskis, 2019 from Mindoro and
S. luzonica Barevskis, 2019 from Luzon. Bar-
evskis (2021) described S. fantii Barevskis
2021, also from Luzon.
This article present the description of a new
species from Luzon. This is the third species
from Luzon and the sixth species from the Phi-
lippine Archipelago.
MATERIAL AND METHODS
The studied material is deposited in the beetles
collection of Daugavpils University, Institute of
Life Sciences and Technology, Coleopterolo-
gical Research Centre (DUBC; Ilgas, Daugav-

400
Barevskis A.
pils Distr., Latvia). The laboratory research and
measurements have been performed using Ni-
kon AZ100, Nikon SMZ745T and Zeiss Stereo
Lumar V12 digital stereo microscopes, NIS-
Elements 6D software. The habitus photograph
was obtained with a digital camera Canon EOS
6D with Canon MP-E65 mm macro lens, using
Helicon Focus and subsequently was edited with
Photoshop. All measurements are given in milli-
meters.
In the present paper I followed the taxonomic
nomenclature provided by Tavakilian, Chavil-
lotte (2021) and Berzak (2021).
RESULTS
Synixais anichtchenkoi sp. nov.
(Fig. 1)
Type material. HOLOTYPUS, male: Philip-
pines: / Luzon Isl., / Tapsoy, Nagtipunan, / Qui-
rino, 01.2020./ local collector leg. [handwrit-
ten]; // HOLOTYPUS: / Synixais / anichtchen-
koi sp. nov. / A. Barevskis descr. 2022 [red
label, handwritten] (DUBC).
General distribution: Philippines: Luzon
island.
Description. Body length: 7.4 mm, body width:
2.5 mm. Dorsal surface of body with grey pube-
scence, with coarse and moderately sparse rows
of brown dots. Lateral portions of elytra with
three oblique, smooth, dark-brown smoth spots
and covered with long hairs.
Head quadrangular, transverse, flattened, with
fine grey pubescence, wrinkled microsculpture
and sparse punctation, except dark, shiny, rela-
tively narrow transverse band without pube-
scence. Eyes relatively small, not extended,
markedly bilobate, dorsal and ventral lobes con-
nected with very thin line, poorly visible from
above and therefore each lobe seems like sepa-
rate eye. Cheeks narrow, not extended, with grey
pubescence, with elongated hairs near lateral
margins of eyes. Clypeus very narrow, shiny,
covered with yellow-grey pubescence frontally.
Fig. 1. Synixais anichtchenkoi sp. nov. (holo-
typus)
Labrum brown, shiny, with yellow-grey pube-
scence and long setae. Mandibles brown, wide,
shiny, with acute apices. Antennae dark-brown,
with inner sides densely covered by numerous
long setae; basal antennomere elongate, thicke-
ned, with fine microsculpture and relatively long
hairs; antennomere 2 short, covered with long
setae; antennomeres 3–4 with grey pubescence
in basal portions, remaining antennomeres
unicolor, dark-brown.
Pronotum narrower than elytra, with transverse
basal impression, covered with grey pubescence
and sparse, coarse dark punctures. Basal angles
of pronotum rounded, not visible. Legs yellow-

401
A new species of the genus Synixais Aurivillius, 1911 (Coleoptera: Cerambycidae) from the Philippines
brown, covered with grey fine pubescence, with
numerous long hairs. Tarsomeres dark, without
sparse and grey pubescence on dorsal side. Scu-
tellum widely rounded apically, covered with
dense grey pubescence. Pars stridens not visible
under basal margin of pronotum.
Elytra covered with grey pubescence and dark–
brown, sparse and coarse punctures, transver-
sely impressed in mediolateral portions. Lateral
sides of each elytron with three oblique, smooth,
dark-brown spots. Elytra covered with sparse,
coarse, setiferous punctures, with one long dark
setain each puncture. Lateral sides of elytra
slightly curved. Ventral side of body covered
with dense and grey pubescence.
Female unknown.
Differential diagnosis. Synixais anichtchenkoi
sp. nov. differs from other species known from
Luzon by the different body shape, coloration
and pattern. Pronotum of S. luzonica Barevskis,
2019 narrowed in frontal portion (frontal por-
tion of pronotum of a new species is moderately
wide).The dorsal surface of body of S. luzonica
is covered with bicoloured pubescence, with the
domination of yellow-brown tone (the pube-
scence of a new species is grey). The smooth
lateral spots of S. luzonica are differently
arranged, the antennae are brown (antennae of
a new species are darker). Synixais fantii Bar-
evskis 2021 can be distinguished from S. anich-
tchenkoi sp. nov. by the different location of
lateral and dorsal spots of elytra, distinctly finer
in a new species and located only on lateral
portions of elytra.The new species can be distin-
guished from all species listed above by the
distinctly smaller body (the body of both other
species > 10 mm).
Etymology. This species is named after my
friend and excellent colleague, carabidologist
Dr. Alexander Anichtchenko (Daugavpils
University, Latvia) in appreciation of friendship,
excellent cooperation, and in gratitude for his
contribution to the studies of Carabidae in the
Philippines.
AKNOWLEDGEMENT
I wish to express my gratitude to Alexey Shavrin
for help during the preparation of the manu-
script, and Alexander Anichtchenko (both from
Daugavpils, Latvia) for help in preparation of
photograph.
REFERENCES
Barevskis A. 2018a. To the knowledge of
long horned beetles (Coleoptera: Ceramby-
cidae) of the Oriental Region. Part 1. Acta
Biologica Universitatis Daugavpiliensis, 18(2):
285–294.
Barevskis A. 2018b. A new species of the genus
Synixais Aurivillius, 1911 (Coleoptera: Ceram-
bycidae) from the Philippines. Baltic Journal
of Coleopterology, 18(2): 305–308.
Barevskis A. 2019a. To the knowledge of
long horned beetles (Coleoptera: Ceramby-
cidae) of the Oriental Region. Part 2. Acta
Biologica Universitatis Daugavpiliensis, 19(2):
287–295.
Barevskis A. 2019b. A new species and a new
record of the genus Synixais Aurivillius, 1911
(Coleoptera: Cerambycidae). Acta Biologica
Universitatis Daugavpiliensis, 19(1): 95–98.
Barevskis A. 2019a. To the knowledge of long-
horned beetles (Coleoptera: Cerambycidae) of
the Oriental Region. Part 2. Acta Biologica Uni-
versitatis Daugavpiliensis, 19(2): 287–295.
Barevskis A. 2019b. A new species and a new
record of the genus Synixais Aurivillius, 1911
(Coleoptera: Cerambycidae). Acta Biologica
Universitatis Daugavpiliensis, 19(1): 95–98.
Barevskis A., 2021. Two new species of the
tribe Pteropliini Thomson, 1860 (Coleoptera:
Cerambycidae) from the Philippines. Baltic
Journal of Coleopteroleopterology, 21(2): 151–
156.
Berzak L. G. 2022. A Photographic Catalog of
the CERAMBYCIDAE of the World. Old World

402
Barevskis A.
Cerambycidae Catalog. http://bezbycids.com/
byciddb/wdefault.asp?w=o [accessed: 01.11.
2022.]
Kuleshov D. A. 2017. A new species of the genus
Aphrodisium Thomson, 1864 (Coleoptera:
Cerambycidae) from the Philippines. Baltic
Journal of Coleopterology, 17(1): 15–17.
Medina M. N. D., Mantilla L. K., Cabras A.,
Vitali F. 2021. Catalogue of the genus Cereop-
sius Pascoe 1857 (Coleoptera: Cerambycidae:
Lamiinae) in the Philippines with description
of a new species from Mindanao. Zootaxa,
5061(2): 383–391.
Medina M. N. D., Baul M. J. G., Cabras A. A.
2022. Catalog of the genus Cylindrepomus
Blanchard (Coleoptera, Cerambycidae, Dorca-
schematini) in the Philippines, with description
of a new species from northern Mindanao.
ZooKeys, 1116: 23–32.
Skale A., Vitali F. 2021. Bemerkungen zur
Gattung Aphrodisium Thomson, 1864, Teil 2.
(Coleoptera, Cerambycidae). Lambillionea
CXXI (2): 100–110.
Tavakilian G., Chavillotte H. 2020. Base de
données Titan sur les Cerambycidés ou Lon-
gicornes. http://titan.gbif.fr [accessed: 01.11.
2022]
Vitali F. 2022. A new endemic flat-faced long-
horn from Sulawesi (Coleoptera Ceramby-
cidae). Baltic Journal of Coleopterology, 22(1):
145–148.
Vitali F. 2018. The Acalolepta australis species-
group, with revalidation of Dihammus Thom-
son, 1864 as a subgenus (Coleoptera, Ceram-
bycidae). Les Cahiers Magellanes, 31: 25–39.
Vives E. 2022a. Especies nuevas o interesantes
de longicórnios de Filipinas (Pars 23) (Coleop-
tera, Distenidae, Cerambycidae). Les Cahiers
Magellanes, NS, 43: 18–28.
Vives E. 2022b. Cerambícidos nuevos o intere-
santes de Filipinas (Coleoptera, Cerambycidae)
(Pars-22). Faunitaxys, AFCFF (Association
française de Cartographie de la Fauneet de la
Flore), 2022, 10(30): 1–3.
Vives E. 2017. New or interesting Ceramby-
cidae from the Philippines (Part XV) (Coleop-
tera, Cerambycidae, Lamiinae). Les Cahiers
Magellanes (NS), 25: 47–65.
Vives E., 2015. New or interesting Ceramby-
cidae from the Philippines (Coleoptera, Ceram-
bycidae, Lamiinae) (Part XII). Boletín de la
Sociedad Entomológica Aragonesa 56: 49–60.
Received: 30.10.2022.
Accepted: 15.12.2022.