A new species of the genus Asiodonus legalov, 2010 (Coleoptera, curculionidae) from Russian far east

Abstract

A new species Asiodonus sikhotealinensis sp. nov. from Khabarovskii krai (North-Eastern part of the Sikhote-Alin Mountain Range) is described and illustrated. This new species is similar to A. streltzovi Legalov, 2012 but differs in the narrower elytra, the greatest width of pronotum before apex and narrower and longer aedeagus. A distribution map for the species of the Asiodonus rugulosus-group is given. © 2018, Baltic Institute of Coleopterology. All rights reserved.

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Baltic J. Coleopterol. 18(1) 2018
ISSN 1407 - 8619
INTRODUCTION
The tribe Hyperini is widespread, but the centre
of diversity is located in Central Asia (Legalov,
2011). The representatives of the genera Fronto
Petri, 1901, Asiodonus Legalov, 2010,
Eremochorus Zaslavskij, 1962, Metadonus
Capiomont, 1868, Hypera Germar, 1817 and
Boreohypera Korotyaev, 1999 of the tribe
Hyperini are known from the Russian Far East
(Legalov, 2010). More than 20 species from
Ukraine, Afghanistan, Uzbekistan, Kirgizstan,
Kazakhstan, China and Russia (Ural, Siberia, Far
East) belong to the genus Asiodonus. A.
knutelskyi Legalov, 2012, A. streltzovi Legalov,
A new species of the genus Asiodonus Legalov, 2010 (Coleoptera,
Curculionidae) from Russian Far East
Andrei A. Legalov
Legalov A.A. 2018. A new species of the genus Asiodonus Legalov, 2010 (Coleoptera,
Curculionidae) from Russian Far East. Baltic J. Coleopterol. 18(1): 51 - 56.
A new species Asiodonus sikhotealinensis sp. nov. from Khabarovskii krai (North-Eastern
part of the Sikhote-Alin Mountain Range) is described and illustrated. This new species is
similar to A. streltzovi Legalov, 2012 but differs in the narrower elytra, the greatest width
of pronotum before apex and narrower and longer aedeagus. A distribution map for the
species of the Asiodonus rugulosus - group is given.
Key words: Coleoptera, Curculionoidea, Curculionidae, Hyperini, new species, Khabarovskii
krai, Far East.
Andrei A. Legalov. Institute of Systematics and Ecology of Animals, Siberian Branch,
Russian Academy of Sciences, Frunze street-11, Novosibirsk 630091 Russia;
Altai State University, Lenina-61, Barnaul 656049 Russia; e-mail:
fossilweevils@gmail.com
2012, A. shokhrini Legalov, 2012, A.
rugulosus (Petri, 1901) and A. belokobyskyi
Legalov, 2011 are known from the south of the
Far East.
The Asiodonus was synonymous with the genus
Donus Jekel, 1865 based on the absence of the
revision of this group (Skuhrovec, 2013), but a
complex review of the tribe Hyperini was done
by Legalov (2011c) where the generic status of
Asiodonus was confirmed.
In this paper, a new species of the genus
Asiodonus from the Sikhote-Alin Mountain
Range from Russian Far East is described.

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Legalov A.A>
The present paper continues the author Q–
p2Q–s r esearch on Asian Hyperini (Legalov,
1997a, 1997b, 1999a, 1999b, 2008, 2010,
2011a, 2011b, 2012a, 2012b, 2012c).
MATERIAL AND METHODS
Type specimens are kept in the ISEA = Institute
of Systematics and Ecology of Animals (Russia:
Novosibirsk).
Descriptions, body measuring, and photographs,
were performed using a Zeiss Stemi 2000-C
dissecting stereomicroscope.
The terminology of weevil body is according
to Lawrence et al. (2010).
RESULTS
Asiodonus Legalov, 2010
Asiodonus rugulosus - group
Asiodonus sikhotealinensis sp. nov.
(Fig. 1)
Type material: Holotype. Male (ISEA),
Russia, Khabarovskii krai, North-Eastern part
of Sikhote-Alin Mountain Range, Botcha Nature
Reserve, Teplyi kljuch cordon, 48°17.75' N,
139°34.52’E, larch forest, soil traps, 20-
30.VI.2016, R. & E. Dudko.
Paratypes. 3 Males (ISEA), female (ISEA),
idem.
Description. Body black, with rarely narrow
scale with metallic usually pink lustre. Elytral
intervals with indistinct bare small spots.
Antennae and legs dark brown.
Male: Rostrum short, thick, weakly curved, with
weak middle carina, coarsely punctate in basal
and middle thirds, finely punctate at apex, 2.3
times as long as wide in middle, 0.8 times as
short as pronotum. Mandibles massive with two
teeth on inner edge. Forehead narrower than
rostrum base width, flat, punctate. Eyes large,
transversely oval, weakly convex. Temples short.
Antennae inserted before apex of rostrum.
Antennae long. Scapus long, reaching eyes.
Antennomeres 2 and 3 long conical.
Antennomere 3 longer and narrower than
antennomere 2. Antennomere 4 conical.
Antennomere 5 oval. Antennomere 6 almost
rounded. Antennomere 7 rounded. Antennomere
8 wide-conical. Club compact. Antennomere 9
longer than antennomeres 10 and 11 taken
together.
Pronotum 1.4 times as long as wide at apex, 0.9
times as long as wide in middle, subequal in
length and wide at base. Greatest width before
apex. Disk lustrous, densely punctate. Scutellum
small, trapezoidal.
Elytra oval, 1.7 times as long as wide at base,
1.5 times as long as wide in middle, 2.0 times
as long as wide at apex, 2.5 times as long as
pronotum. Humeri smoothed. Greatest width in
middle. Intervals wide, flat, punctate. Striae
quite deep, with elongated points.
Procoxal cavities rounded and contiguous.
Precoxal portion of prosternum shorter than
postcoxal portion. Mesocoxal cavities narrowly
separated. Metaventrite short, as long as ventrite
1. Metanepisterna narrow, punctate.
Abdomen weakly convex. Ventrites 1 and 2 quite
long, fused, with slight depression in middle.
Ventrite 1 shorter than metacoxal cavity. Ventrite
2 little longer than ventrite 1. Ventrites 3 and 4
quite short, subequal in length. Ventrite 3
distinctly shorter than ventrite 2. Ventrite 5 long.
Pygidium completely covered by elytra.
Legs long. Femora widened. Tibiae weakly
biconcave, with apical comb of setae. Protibiae
with small mucro. Tarsi long. Tarsomeres 1-3
with pulvilli on lower surface. Tarsomeres 1 and
2 conical. Tarsomere 2 shorter than tarsomere
1. Tarsomere 3 wide bilobed. Tarsmomere 4

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A new species of the genus Asiodonus Legalov, 2010 (Coleoptera, Curculionidae) from Russian Far East
Fig. 1. Asiodonus sikhotealinensis: a - male, holotype, dorsally, b - female, paratype, dorsally, c
- aedeagus, holotype, dorsally, d - aedeagus, holotype, laterally. Scale bar = 1.0 mm.

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Legalov A.A.
Fig. 2. Distribution: square - Asiodonus rugulosus, circle - A. knutelskyi, rhombus - A.
sikhotealinensis.
Fig. 3. Distribution: square - Asiodonus streltzovi, circle - A. shokhrini.

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A new species of the genus Asiodonus Legalov, 2010 (Coleoptera, Curculionidae) from Russian Far East
short. Tarsomere 5 elongated. Claws long and
free.
Length of body: 5.8-6.0 mm. Length of rostrum:
1.2 mm.
Female: Rostrum 2.0 times as long as wide in
middle, 0.7 times as short as pronotum.
Pronotum 1.2 times as long as wide at apex, 0.9
times as long as wide in middle, almost subequal
in length and wide at base. Elytra wider, 1.7
times as long as wide at base, 1.3 times as long
as wide in middle, 2.1 times as long as wide at
apex, 2.6 times as long as pronotum. 1.34 times
as long as wide. Abdomen stronger convex.
Ventrites 1 and 2 lacking depression in middle.
Length of body: 6.3 mm. Length of rostrum: 1.2
mm.
Diagnosis. This new species is similar to A.
streltzovi Legalov, 2012 from Amur Prov. but
differs in the narrower elytra, the greatest width
of pronotum before apex and narrower and
longer aedeagus.
Etymology. The name is formed from Sikhote-
Alin - “sikhotealinensis”.
Distribution. Russian Far East (Khabarovskii
krai).
Remarks. Distribution (figs. 1-2) of species
from the Asiodonus rugulosus - group is given.
ACKNOWLEDGEMENTS
I thank Dr. R. Yu. and Mr. E.R. Dudko
(Novosibirsk) which collected this new species.
REFERENCES
Lawrence J.F., Beutel R.G., Leschen, R.A.B.,
Slipinsky S.A. 2010: Chapter 2. Glossary of
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Legalov A.A. 2011c. A review of weevils of the
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Legalov A.A.
Received: 12.05.2018.
Accepted: 31.07.2018.
Published: 10.09.2018.