Carpelimus (Bucephalinus) solumus Gildenkov, 1952

Gildenkov, M. Yu., 2020, Eight new species of the genus Carpelimus Leach, 1819 from Indonesia (Coleoptera: Staphylinidae: Oxytelinae), Russian Entomological Journal 29 (1), pp. 53-60 : 60

publication ID

https://doi.org/ 10.15298/rusentj.29.1.07

publication LSID

lsid:zoobank.org:pub:C3FF46AA-3520-4716-995A-854BDC8DD953

DOI

https://doi.org/10.5281/zenodo.11093844

persistent identifier

https://treatment.plazi.org/id/039ABB25-A551-FFC9-FEA5-FA0DB2C2BF61

treatment provided by

Felipe

scientific name

Carpelimus (Bucephalinus) solumus Gildenkov
status

sp. nov.

Carpelimus (Bucephalinus) solumus Gildenkov View in CoL , sp.n.

Figs 21 View Figs 20–21 , 28–29 View Figs 22–29

MATERIAL. Holotype, ♂ “S Sulawesi nr. Bantimurung | 700m, 9–12.V.97 | leg. S. Kurbatov ” ( MHNG).

DESCRIPTION (holotype). Length 1.7 mm. Entirely dark brown; legs and antennal base yellow brown, antennae darkened toward apex to brown. Integument slightly shining, body with short, light-coloured hairs.

Head transverse, with a wide base, ratio of its length (from posterior margin of head to anterior margin of clypeus) to maximum width about 17:24. Neck constriction prominent. Eyes of medium size, slightly convex. Temples well-developed, round, eye diameter in dorsal view noticeably longer (but less than 1.5 times as long) than temple length. Head widest across temples ( Fig. 21 View Figs 20–21 ). Head surface with coarse, large and very dense punctation. Punctures umbilicate, their diameter about equal to eye facet. Separate punctures distinct only on vertex, distances between them significantly smaller than their diameter, interspaces shagreened; on remaining surface of head punctures coalescent, forming rather coarse microsculpture ( Fig. 21 View Figs 20–21 ). Antennae rather long, antennal segments 1–3 elongated; segments 4–5 slightly elongated; segments 6–7 about as long as wide; segments 8– 10 slightly transverse; segment 11 elongated, conical. Last 3 segments more massive than others and form loose club.

Pronotum widest about 2/3 its length from base, then narrowed. Lateral margins with a barely distinct notch at base, then smoothly rounded ( Fig. 21 View Figs 20–21 ). Ratio of pronotum length to its maximum width about 19:26. Surface of pronotum with coarse, large and very dense punctation. Punctures umbilicate, their diameter about equal to eye facet. Separate punctures indistinct, coalescent, forming rather coarse microsculpture ( Fig. 21 View Figs 20–21 ). Depressions on pronotal disc absent ( Fig. 21 View Figs 20–21 ).

Ratio of length of elytra to their combined width about 29:33. Scutellum with weak rounded depressions ( Fig. 21 View Figs 20–21 ). Surface of elytra with distinct, large and dense punctation. Puncture diameter about 1.5 times as large as eye facet. Distances between punctures much smaller than their diameter, interspaces smooth, slightly shining.

Abdomen delicately shagreened.

Aedeagus of characteristic structure ( Figs 28–29 View Figs 22–29 ).

Female unknown.

COMPARATIVE REMARKS. The new species is somewhat similar in punctation patterns to the African Carpelimus (Bucephalinus) bicyclus (Fauvel, 1907) and C. (B.) turneri Gildenkov, 2012, but can be distinguished by a smaller body size and also differs in geographic distribution and the structure ( Figs 28–29 View Figs 22–29 ) of the aedeagus [ Gildenkov, 2015: 376, Fig. 10 View Figs 7–19 : 5, 7].

DISTRIBUTION. Indonesia, Sulawesi Island.

ETYMOLOGY. From Latin “solum” (lonely); the name alludes to the fact that the female remains unknown.

Acknowledgements. The author wishes to thank all colleagues for making material available for study: Giulio Cuccodoro ( MHNG), Harald Schillhammer ( NHMW), Matthias Hartmann ( NKME) and Wolfgang Schawaller ( SMNS). I also thank Kirill Makarov for taking the photographs (Moscow Pedagogical State University, Russia).

MHNG

Museum d'Histoire Naturelle

NHMW

Naturhistorisches Museum, Wien

SMNS

Staatliches Museum fuer Naturkund Stuttgart

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Carpelimus

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