Khudaybergan Bekchanov’s research while affiliated with Nukus State Pedagogical Institute named after Ajiniyaz and other places

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Publications (5)


First data on the darkling beetle fauna (Coleoptera: Tenebrionidae) of the Hissar State Reserve, Uzbekistan
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August 2024

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174 Reads

Zoosystematica Rossica

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M.Sh. Rakhimov

The invertebrate fauna of the Hissar State Reserve in Uzbekistan remains largely unstudied. In this reserve, we collected and examined darkling beetles, which are among the most diverse and abundant groups of beetles in Middle Asia. All species were found at altitudes ranging from 1,800 to 2,500 meters, spanning the zone of Juniperus seravschanica Kom. and mountain steppes to the border of subalpine meadows. In total, 21 species were collected, one of which, Prosodes (Uroprosodes) chigrayi Nabozhenko et N. Bekchanov sp. nov., is new to science. Another species, Bioramix (Planoplatyscelis) latipennis (Kaszab, 1940), is recorded for the first time in the fauna of Uzbekistan. Additionally, we found and examined the very rare species Laena dentitibia Reitter, 1901, which was previously known only from the male holotype. The female of the rare species Blaps aruktavica G.S. Medvedev, 2004 is characterised for the first time. Two female specimens of the very rare Hissar population of Blaps caraboides Allard, 1882, which have a pronounced elytral mucron, were found for the first time in 112 years. We provide illustrations of the majority of species for the first time. Data on the distribution, taxonomy, external morphology, variability, and bionomics of the examined species are presented.

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Map of distribution of Dengitha spp. black circle: D. crystallina; white circle: D. lutea
Dengitha crystallyna, habitus, labels and morphological details. A: male, lectotype, habitus dorsally; B: male, paralectotype, habitus ventrally; C: labels of the lectotype; D: mesoventrite; E: head dorsally, lectotype
Dengitha symmetrica, syn. n. and D. crystallyna, type- and non-type specimens. A: holotype D. symmetrica, male, habitus dorsally; B: paratype D. symmetrica, female, habitus dorsally; C: labels of the holotype of D. symmetrica; D: head (dorsally) of the holotype of D. symmetrica; E: head dorsally, paratype of D. symmetrica (Taldy-Kuduk, Kazakhstan); F: head dorsally, paralectotype of D. crystallina (Uzun-Ada, western Turkmenistan); G: head dorsally, non-type (Khiva, Uzbekistan)
Dengitha lutea, female, holotype. A: habitus; B: pronotum and head, antero-laterally, right side; C: ditto, laterally, left side; D: ditto, dorsally; E: labels. Photos by Aranka Grabant (HNHM)
Dengitha hyalina, junior synonym of D. lutea, habitus, labels and morphological details. A: male, holotype, habitus dorsally; B: female, habitus dorsally; C: labels of holotype; D: mesoventrite, ventrally; E: head dorsally, holotype
Review of the genus Dengitha Reitter, 1887 (Coleoptera: Tenebrionidae: Tentyriini)

April 2024

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184 Reads

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1 Citation

The Central Asian genus Dengitha Reitter, 1887 is briefly reviewed. The following new synonymy is proposed: Dengitha crystallina Semenow, 1896 = Dengitha symmetrica G.S. Medvedev, 1964 syn. nov.; Dengitha lutea Reitter, 1887 = Dengitha hyalina Semenow, 1896 resyn. Lectotype is designated for D. crystallina. In total, two species of the genus are distributed in Central Asia, occurring on weakly fixed sands with Haloxylon or dunes without vegetation in the Karakum and Kyzylkum deserts. Dengitha crystallina is widely distributed in Turkmenistan (western, central and north Karakum), Uzbekistan (Ustyurt plateau, Kyzylkum) and Kazakhstan (Kyzylkum); Dengitha lutea is known only from the eastern Karakum (Turkmenistan) and Sundukli deserts near the Amudarya River (Turkmenistan, Uzbekistan).


A revision of the Palaearctic Pimeliini (Coleoptera: Tenebrionidae): the genus Sternodes Fischer von Waldheim, 1837

March 2024

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310 Reads

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1 Citation

Caucasian Entomological Bulletin

The genus Sternodes Fischer von Waldheim, 1837 currently consists of one species with two subspecies from Karakum, Sundukli deserts and several surrounding areas. Sternodes pallasi Semenov-Tian-Shanskij et Bogatchev, 1940 is resurrected from a junior synonym of Sternodes caspicus (Pallas, 1781). The following new synonymy is established: Sternodes caspicus caspicus (Pallas, 1781) = Sternodes caspicus eous Semenov-Tian-Shanskij et Bogatchev, 1940, syn. n. The lectotype is designated for S. caspicus eous. As a result, two valid species (without subspecies) are known in the genus. They differ in the structure of head, prosternal process and elytra. Both species are sympatric in Repetek (Karakum Desert, eastern Turkmenistan), but S. caspicus has spring-summer activity, while S. pallasi was collected in late autumn.



Figs 1-6. Philhammus (s. str.) spp. of Middle Asia: 1, 3, 5 -Ph. dilaramae sp. n.; 2, 4, 6 -Ph. zaitsevi; 1, 2 -habitus; 2, 3 -head and pronotum dorsally; 5, 6 -head and pronotum dorso-laterally. Scale bare for figs 3-6 = 0.5 mm.
A new species of the genus Philhammus Fairmaire, 1871 (Coleoptera: Tenebrionidae) from Uzbekistan

August 2023

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247 Reads

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1 Citation

Far Eastern entomologist

A new species of darkling beetles of the genus Philhammus Fairmaire, 1871 is described from Amudarya bank, Khorezm Region, Uzbekistan: Ph. dilaramae Nabozhenko et N. Bekchanov, sp. n. This first representative of the genus in the country belongs to the nominotypical subgenus and most similar to Pre-Caspian Ph. zaitsevi G.S. Medvedev, 1979. The new species differs from the latter in the structure of genae, eyes and pronotum.