Description of a new species of the genus Hypothenemus Westwood, 1836 (Coleoptera: Curculionidae: Scolytinae) from South Primorie of Russia and South Korea

Abstract

A new species of Hypothenemus West- wood, 1834, H. margaritae sp.n. is described from
south of Primorskiy kray of Russia and South Korea.

Full text

© RUSSIAN ENTOMOLOGICAL JOURNAL, 2020
Russian Entomol. J. 29(1): 83–86
How to cite this article: Petrov A.V., Shamaev A.V. 2020. Description of a new Hypothenemus Westwood, 1834
species (Coleoptera: Curculionidae: Scolytinae) from South of Primorskiy Kray of Russia and South Korea //
Russian Entomol. J. Vol.29. No.1. P.83–86. doi: 10.15298/rusentj.29.1.11
Description of a new Hypothenemus Westwood, 1834 species
(Coleoptera: Curculionidae: Scolytinae) from
South of Primorskiy Kray of Russia and South Korea
Îïèñàíèå íîâîãî âèäà ðîäà Hypothenemus Westwood, 1834
(Coleoptera: Curculionidae: Scolytinae)
ñ þãà Ïðèìîðñêîãî êðàÿ Ðîññèè è èç Þæíîé Êîðåè
A.V. Petrov1, A.V. Shamaev2
À.Â. Ïåòðîâ1, À.Â. Øàìàåâ2
1Institute of Forest Science RAS, Sovetskaya st. 21, Uspenskoe, Moscow Region 143030, Russia. E-mail: hylesinus@list.ru
1Институт лесоведения Российской академии наук, с. Успенское, ул. Советская д.21, 143030 Московская обл., Россия.
2FGBU “VNIIKR”, Pogranichnaya st. 32, Bykovo, 140150 Moscow reg., Russia. E-mail: shamaev2008@yandex.ru
2Всероссийский центр карантина растений (ФГБУ «ВНИИКР»), пос. Быково, ул. Пограничная д.32, 140150 Московская область,
Россия.
KEY WORDS: Coleoptera, Curculionidae, Scolytinae, Hypothenemus, bark beetles, taxonomy, Russia, South
Korea.
КЛЮЧЕВЫЕ СЛОВА: Coleoptera, Curculionidae, Scolytinae, Hypothenemus, короеды, систематика,
Россия, Южная Корея.
Bright, 1992]. Several hundred Hypothenemus species
from different tropical and subtropical areas were de-
scribed in entomological literature, but a majority of
them are now in synonymy [Wood, 1986].
Most Hypothenemus species are tiny (length 0.6–
2.0 mm), few species exceeds 2.0 mm (2.1–2.8 mm). A
“big” species of Hypothenemus, H. margaritae is de-
scribed from southernmost Primorskiy Kray of Russia
and South Korea.
The characteristic features of the genus Hypothen-
emus include the following: 1) an emarginated eye; 2)
antennal funicle 3- to 5-segmented; 3) antennal club
with partly septate suture 1, suture 2 procurved and
marked by setae; 4) basal and posterolateral margins
of the pronotum with fine raised line; 5) rather abun-
dant vestiture, usually including scales; 6) flightless
males of reduced size [Vega et al, 2015; Westwood,
1834; Wood, 1982; 1986; 2007]. Species of Hypoth-
enemus are distinguished from Scolytogenes Eichhoff,
1878 by the presence of procurved suture 2 marked by
setae, by the vestiture that consists of rows of interstri-
al scales and rows of recumbent strial setae [Bright,
2019; Vega et al, 2015].
Recently second author has collected a series of
Hypothenemus beetles in southern parts of Primorskiy
Kray. Besides, six specimens of this species from
South Korea were found in Research Institute of
Forest Insect Diversity collection (Namyangju, South
ABSTRACT. A new species of Hypothenemus West-
wood, 1834, H. margaritae sp.n. is described from
south of Primorskiy kray of Russia and South Korea.
РЕЗЮМЕ. Описывается новый вид рода
Hypothenemus Westwood, 1834, H. margaritae sp.n. с
юга Приморского края России и из Южной Кореи.
The bark beetles are a constant part of the forest
communities participating in the trees decay. The ma-
jority of species of Scolytinae inhabits the branches and
stems of the host trees, less frequently fruit shells and
leaf petioles or stems of herbaceous plants [Kirkendall
et al, 2015; Petrov, 2017; Wood, 1982].
Tribe Cryphalini Lindemann, 1877 unites in Russia
eight genera of Scolytinae: Allernoporus Kurentsov,
1941, Cryphalus Erichson, 1836, Eidophelus Eichhoff,
1876, Ernoporicus Berger, 1917, Ernoporus Thomson,
1859, Hypothenemus Westwood, 1834, Procryphalus
Hopkins, 1915, Trypophloeus Fairmaire, 1864 [Berger,
1917; Krivolutskaya, 1958, 1996; Kurentsov, 1941;
Salnitskaya, Mandelshtam, 2015; Stark, 1952].
The genus Hypothenemus Westwood, 1834 is one
of the speciose genera of tribe Cryphalini Lindemann,
1877 (Coleoptera, Curculionidae, Scolytinae), common
in tropical and subtropical areas. The genus Hypothen-
emus includes more than 180 recent species [Bright,
Skidmore, 1997, 2002; Bright, 2014, 2019; Wood,

84 A.V. Petrov, A.V. Shamaev
Korea) and University of Florida Forest Entomology
collection (UFFE).
Photographs of beetles were taken using a Canon
50D camera and macro lens MP-E6.5, and processed
using the program CombineZP.
Hypothenemus margaritae Petrov and Shamaev, sp.n.
Figs 1–7.
MATERIAL. Holotype, $ (ZMM): RUSSIA: South Primorskiy
Kray Khasan District, 10 km N from Kraskino, beetle raised from
larvae, 7.I.2018, A.V. Shamaev; Paratypes: same place, but emerged
from 1.I.2018 till 2.V.2018, 20$$ (in APP and VNIIKR collection,
12
34
5
6
7
Figs 1–7. Habitus and details of Hypothenemus margaritae sp.n., females: 1–4 — habitus; 5 — head; 6 — antenna; 7 — elytral declivity;
2 — holotype; 1, 4–7 — paratypes from South Primorie, Russia; 3 — paratype from South Korea; 1–2, 4–7 — photographs of A.V. Petrov;
3 — photograph of S. Park.
Рис. 17. Габитус и детали строения Hypothenemus margaritae sp.n., самки: 1–4 — внешний вид; 5 — голова; 6 — усик; 7 — скат
надкрылий; 2 — голотип; 1, 4–7 — паратипы из Южного Приморья России; 3 — паратип из Южной Кореи; 1–2, 4–7 — фотографии
А.В. Петрова; 3 — фотография S. Park.

85
Description of a new Hypothenemus species
Moscow; ZIN RAS, St.Petersburg, Russia); South Korea 6 $$: Gyeo-
nggi Province, Gunpo-Si, Hosu-ro, Mt. Surisan, 14.IV.2016, leg.
S. Park (1 $); Gangwon Province, Inje-gun, Inje-eup, Gwandae-ri
13–19.VI.2013, leg. S. Park [labeled in Korean](1 $); Gangwon
Province, Inje-gun, Buk-myeon, Hangye-ri, 17.IV–8.V.2018, leg.
M.H. Lee (1 $); Gangwon Province, Goseong-gun, Geojin-eub,
Geonbongsa-ro, 26.V.1993, leg. D.S. Gu (1 $); Gangwon Province,
Chuncheon-si, Dong-myeon, Janghak-ri, 21.IV–17.V. 2011, leg.
S. Park (1 $); Gyeongbuk Province, Yeongju-si, Pyeongeun-myeon,
Gangdong-ri, 10.V.1997, leg. K.J. Hong (1 $).
TYPE LOCALITY. Russia, South Primorskiy Kray.
DESCRIPTION. Female: body length 2.50 mm, 2.27
times as long as wide, body dark brown, covered with pale
scales; antenna and legs yellowish brown (Figs 1–4).
Head black, shining. Frons convex from epistoma to
vertex, punctured by small points except smooth median
area from epistoma to upper level of eyes, vertex with sparse
large punctures; vestiture hair-like, short, sparse, except
numerous long yellow setae on epistoma and lateral sides of
frons (Figs 1, 5). Eyes large, shallowly emarginated. Anten-
nal funicle 5-segmented, club 2.0 times as long as wide,
suture 1 straight, partly septate, suture 2 procurved and
marked by setae (Fig. 6).
Pronotum 0.88 times as long as wide, surface shining;
sides moderately arcuate on basal half, rather narrowly rounded
in front; basal margin and posterior third of lateral margin
marked by a fine raised line; anterior margin armed by two
large (in the middle) and two smaller (laterally) rounded
serrations; summit at middle, anterior slope coarsely asper-
ate, armed by 20–23 large rounded serrations, surface punc-
tured by small sparse points; posterior area shining, surface
punctured with numerous points; vestiture on anterior part of
abundant erect setae, on posterior part with numerous hair-
like setae and yellowish brown scales.
Elytra 1.54 times as long as wide, 2.12 times as long as
pronotum; sides almost straight and parallel on basal two-
thirds, rather broadly rounded behind; striae 1 and 2 weak-
ly impressed, all striae wide, punctures round, middle
sized (diameter of each point equal in length to distance
between punctures in rows), uniform from the base to
apex,; interstriae on disc almost smooth, about 1.2 times as
wide as striae, with very small punctures, not at all granu-
late. Declivity convex, moderately steep; striae as wide as
interstriae, declivital strial punctures well-developed clear,
all interstriae weakly elevated (Fig. 7). Disc vestiture of
rows of fine, rather short strial hairs, supplemented by
some similar interstrial hair, and single straight rows of
erect interstrial scales; each scale length equal to half of
distance between rows; single straight rows of erect inter-
strial scales on declivity more abundant, length scales on
declivity equals length of scales on disc.
Abdomen dark brown, vestiture of numerous hair-like
pale setae.
Male unknown.
MEASUREMENT. Paratypes (females) 1.93–2.6 long,
2.27–2.28 times as long as wide, elytra 1.42–1.56 times as
long as wide, 1.88–2.2 times as long as pronotum.
DIAGNOSIS. The new species is closely related to Hy-
pothenemus interstitialis (Hopkins, 1915), but can be distin-
guished by larger body size, number and form of serrations on
the apical margin of pronotum and vestiture on elytral decliv-
ity.
BIOLOGY. The species was collected in sparse growth
of trees on flat hills. The trees were spaced by 10 to 30 meters.
Larvae and callow adults overwinter in brood galleries. The
adult beetles were raised and obtained by A.V. Shamaev from
the branches of Quercus dentata Thunberg, 1784.
Along with the described species of bark beetle the
branches were inhabited by Phymatodes (Poecilium) ermo-
lenkoi Tsherepanov, 1980 (Cerambycidae) and Agrilus viridis
L. (Buprestidae).
ETYMOLOGY. The new species is named in honor of
A.V. Shamaev’s daughter Margarita Shamaeva.
ACKNOWLEDGEMENTS. We express our most sin-
cere gratitude to Alexey Gusakov (Zoological Museum of
Moscow University, Russia), Harald Schillhammer (Natural
History Museum, Vienna, Austria) for providing access to
the collections. The authors thanks Roger Beaver (Thailand),
Sangwook Park and Andrew Johnson (USA), Mikhail Man-
delshtam (Russia) and Miloš Knížek (Czech Republic) for
consulting and information on Hypothenemus species. Spe-
cial thanks are addressed to Andrew Johnson for information
about specimens from South Korea. The research of the first
author (A.V. Petrov) was supported by a grant from the
Russian Fund for Basic Research (No. 17-04-00360).
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