First record of Margaritapion nitrariae (Ter-Minassian, 1970) (Coleoptera, Brentidae) from Russia - Research Article
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Ecologica Montenegrina 44: 63-68 (2021)
This journal is available online at: www.biotaxa.org/em
http://dx.doi.org/10.37828/em.2021.44.9
First record of Margaritapion nitrariae (Ter-Minassian, 1970)
(Coleoptera, Brentidae) from Russia
ANDREI A. LEGALOV1,2,3* & SERGEI V. RESHETNIKOV4
1
Institute of Systematics and Ecology of Animals, SB RAS, Frunze street 11, Novosibirsk, 630091, Russia
2
Altai State University, Lenina 61, Barnaul, 656049, Russia
3
Tomsk State University, Lenina Prospekt 36, 634050 Tomsk, Russia
4
Kropotkina street 273, Novosibirsk, 630111, Russia. E-mail: reshetnikov-art@yandex.ru
* Corresponding author. E-mail: fossilweevils@gmail.com
Received 11 July 2021 │ Accepted by V. Pešić: 30 July 2021 │ Published online 2 August 2021.
Abstract
The first record of Margaritapion nitrariae (Ter-Minassian, 1970) (Brentidae: Apioninae: Aplemonini) from Altaiskii
Krai, Western Siberia, Russia is given. It is the most north-eastern find of this species. The redescription of
Margaritapion nitrariae is completed. A key for identifying Margaritapion Korotyaev, 1990 and similar genera is
given.
Key words: Biodiversity, Curculionoidea, Apioninae, Aplemonini, new record, Siberia.
Introduction
The subfamily Apioninae is a diverse group including more than 2200 species and subspecies (Alonso-
Zarazaga and Wanat 2014) from 25 tribes (Legalov 2018). The tribe Aplemonini includes 15 genera
distributed mainly in Eurasia less often in North America and Africa (Alonso-Zarazaga and Lyal 1999). This
tribe is characterized by the elytral stria 10 is absent, the procoxal cavities are completely separated, long
trochanters, contiguous mesocoxae and the pygidium is of the apionine type (Legalov 2018). The genus
Margaritapion Korotyaev, 1990 was described (Korotyaev 1990) for the species is associated with Nitraria
(Ter-Minassian 1970). This species was found from Turkey (Korotyaev and Gültekin 2002; Korotyaev et al.
2016), Turkmenistan (Krivokhatsky 1985), Southeast Kazakhstan and Mongolia (Korotyaev 1990).
Margaritapion nitrariae is collected from the south-west of Altaiskii Krai during the study of
Coleoptera is associated on Nitraria. It is the first record from Russia and the most north-eastern find of this
species.
Ecologica Montenegrina, 44, 2021, 63-68
FIRST RECORD OF MARGARITAPION NITRARIAE FROM RUSSIA
Material and methods
Studied specimens are kept in the ISEA – Institute of Systematics and Ecology of Animals (Russia:
Novosibirsk), CSRN = the private collection of S.V. Reshetnikov (Novosibirsk) and Zoological Institute
RAS (Saint-Petersburg).
‚ Photographs (Figs. 1, 3−4) were taken with a camera Fujifilm X-T10 by S.V. Reshetnikov
(Novosibirsk). Descriptions, photographs (Fig. 2) and body measuring were performed using a Zeiss Stemi
2000-C dissecting stereomicroscope.
The terminology of weevil body is according to Lawrence et al. (2010) and Alonso-Zarazaga (1990).
The systematics of studied taxa are based on Alonso-Zarazaga et al. (1999) and Legalov (2018).
Figure 1. Margaritapion nitrariae, female, habitus, dorsal view.
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LEGALOV & RESHETNIKOV
Systematics
Insecta: Coleoptera: Brentidae: Apioninae: Aplemonini
Genus: Margaritapion Korotyaev, 1990
Species: Margaritapion nitrariae (Ter-Minassian, 1970) (Figs 1−2)
Material: 1 female (ISEA), RUSSIA, Altaiskii Krai, env. Rubstovsk, N 51°31.974′; E 81°09.576′, on
Nitraria sibirica, 29.VI.2020, A. Legalov; 4 females (ISEA), 7 females (CSRN), idem, on Nitraria sibirica,
14.VI.2021, A. Legalov and S. Reshetnikov.
Figure 2. Margaritapion nitrariae: A – aedeagus, dorsally; B – aedeagus, laterally; C – tegmen, dorsally; D –
pygidium, dorsally; E – pygidium, laterally. Scale bar = 0.1 mm for A-C, 0.2 mm for D-E.
Ecologica Montenegrina, 44, 2021, 63-68 65
FIRST RECORD OF MARGARITAPION NITRARIAE FROM RUSSIA
Description. Body red-brown, covered with white wide appressed scales. Antennae and legs red.
Rostrum straight, subcylindrical, punctate and apically glabrous, about 3.6 times as long as wide at apex and
in middle, about 2.9 times as long as wide at base, slightly shorter than pronotum. Mesorostrum slightly
dilated in both sexes. Antennal scrobes deep, long, directed to under rostrum. Forehead slightly flattened,
slightly wider than rostrum base. Eyes large, rounded, not protruding from contour of head. Temples short.
Antennae straight, inserted ventrally in basal one third of rostrum, rather short, reach apex of pronotum.
Funicle 7-segmented. Antennomere 1 elongate-trapezoidal, about 2.7 times as long as wide. Antennomere 2
elongate-oval, about 1.4 times as long as wide, shorter and wider than antennomere 1. Antennomeres 3-5
rounded. Antennomeres 6-8 transverse. Club compact, 0.7 times as long as antennomeres 2-8 combined.
Pronotum almost campaniform, 1.4 times as long as wide at apex, subequal to wide in middle and slightly
shorter than wide at base. Greatest width before middle. Vestiture centriptenal. Scutellum almost square,
small. Elytra back pear-shaped, distinctly convex, about 2.0 times as long as base width, 1.3 times as long as
wide in middle, 1.5 times as long as wide in apical quarter, 2.5 times as long as pronotum. Greatest width in
apical one third. Humeri weakly flattened. Striae distinct and deep. Elytral stria 10 absent. Interstriae wide,
slightly convex. Elytral apices rounded separately. Pre- and postcoxal portions of prosternum short.
Postcoxal portion distinctly longer than precoxal portion. Pro- and mesocoxal cavities rounded. Procoxal
cavities completely separated. Mesocoxal cavities separated. Metasternal apophysis triangular. Metacoxal
cavities transversely extended. Metaventrite 1.5 times as long as metacoxa. Ventrites 1 and 2 equal in length,
convex. Ventrite 1 slightly shorter than metacoxal width. Ventrites 3–5 flat, positioned in different plane
than ventrites 1 and 2. Ventrites 3 and 4 equal in length. Ventrite 3 about 0.3 times as long as ventrite 2.
Ventrite 5 about 2.2 times as long as ventrite 4. Legs long, covered with dense wide suboval scales. Procoxae
conical. Meso- and metacoxae convex. Trochanters elongate. Femora slightly clavate, separated from coxae,
without teeth. Tibiae almost straight, rather thick, with apical denticles. Tarsi long, without erect setae
dorsally, with denticles. Tarsomeres 1 and 2 elongate-conical. Tarsomere 3 conical. Tarsomere long-conical.
Claws relatively large, free, without teeth.
Distribution. Asia Minor, Middle Asia, Kazakhstan, Siberia, Mongolia (Fig. 5).
Remarks. This species from Russia is associated with Nitraria sibirica (Figs 3−4).
Figure 3. Nitraria sibirica.
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LEGALOV & RESHETNIKOV
Figure 4. Margaritapion nitrariae on Nitraria sibirica.
Key to genera similar to Margaritapion (modified from Alonso-Zarazaga’s key 1990)
1. Tarsomere 5 more than 4.0 times as long as wide, if not than Onychapion Schilsky, 1901
pronotum cylindrical, longer than wide.
- Tarsomere 5 less than 4.0 times as long as wide 2
2. Protarsi less than 0.7 times as long as length of protibiae. Perapion Wagner, 1907
- Protarsi 1.07-1.1 times as long as length of protibiae. Margaritapion
Figure 5. Distribution of Margaritapion nitrariae. Red circle – new record.
Ecologica Montenegrina, 44, 2021, 63-68 67FIRST RECORD OF MARGARITAPION NITRARIAE FROM RUSSIA
Acknowledgements
The authors thank Dr. Boris A. Korotyaev (Russia: Saint-Petersburg) for the opportunity to study
comparative material deposited in the Zoological Institute RAS, and anonymous reviewers for the valuable
comments that improved the manuscript.
References
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