Carpelimus (Trogophloeus) mumbaiensis Gildenkov, 2024

Gildenkov, M. Yu., 2024, NEW SPECIES OF THE GENUS CARPELIMUS LEACH, 1819 FROM INDIA (COLEOPTERA: STAPHILINIDAE: OXYTELINAE), Far Eastern Entomologist 498, pp. 16-19 : 17-18

Carpelimus (Trogophloeus) mumbaiensis Gildenkov , sp. n.

https://zoobank.org/NomenclaturalActs/ 9237FECC-DF47-4E0F-AC33-91226431B935

Figs 1–3

TYPE MATERIAL. Holotype – ♂, India: Maharashtra state, Matheran / India or. Biró 1902 / Matheran 800 m / Trogophloerus sp. det. Szėkessy / granulatus rupicomis / W. Steal Coll. B.M. 1969-552 / ( BNHM) . Paratypes: 1♂, 1♀, ‘ India or. Biró 1902, Matheran 800 m, W. Steal Coll. B.M. 1969-552’ (♀ − BNHM; ♂ − cMG) .

DESCRIPTION. MALE (holotype). Length 1.7 mm. Coloration brown. Head and abdomen dark brown; pronotum brown; elytra light brown; legs and antennae yellow-brown. Integument slightly shining, body with short, light-colored 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 19: 25. Neck constriction prominent. Eyes large, convex. Temples well-developed, round, eye diameter in dorsal view barely exceeds temple length. Head width across eyes approximately equal to its width across temples ( Fig. 1 ). Head surface with very delicate, very fine and dense punctation. Diameter of punctures about 3.5 times as small as eye facet. Distances between the points are less than their diameter. The surface of the head looks shagreened. Antennae rather short, antennal segments 1–2 elongate; segment 3 slightly elongate; segments 4−6 − about as long as wide; segments 7−10 transverse; segment 11 elongate, conical. Last 3 segments more massive than others and form loose club ( Fig. 1 ).

Pronotum widest about 2/3 its length from base, then narrowed. Lateral margin smoothly rounded ( Fig. 1 ). Ratio of pronotum length to its maximum width about 19:26. Surface of pronotum with very delicate, very fine and dense punctation. Diameter of punctures about 3.5 times as small as eye facet. Distances between points are less than their diameter. The surface looks shagreened. Punctation is less dense than on the head surface. Pronotal disc with one pair of less developed, symmetrical depressions at the base.

Ratio of length of elytra to their combined width approximately as 31:31. Scutellum with shallow, round depressions ( Fig. 1 ). Elytra with quite distinctly, finely and dense punctation. Diameter of punctures approximately equal to diameter of eye facet. Distances between punctures approximately equal to their diameter, interspaces smooth, slightly shining.

Abdomen delicately shagreened.

Aedeagus of characteristic structure ( Figs 2, 3 )

FEMALE. Sexual dimorphism absent, morphologically similar to male. Spermatheca could not be extracted and its structure is unknown.

DISTRIBUTION. India: Maharashtra state.

ETYMOLOGY. Named for its geographical distribution.

DIAGNOSIS. The new species belongs to the ‘ notumus ’ species group, which is recorded for India for the first time. By the punctation of the head and elytra, weakly developed depressions on the pronotal disc, the new species is most similar to C. irianensis Gildenkov, 2020 from New Guinea in elongated tooth-like structures in the internal sac of the aedeagus, but differs in lighter coloration, larger punctation of the elytra, and in the structure of the aedeagus ( Figs. 2, 3 vs. Gildenkov, 2020a: figs 12, 13). Reliably differs from all species of the ‘ notumus ’ species group in the structure of the aedeagus ( Figs. 2, 3 ).

Figures

Figs. 1–3. Carpelimus (Trogophloeus) mumbaiensis sp. n., holotype, male: 1 – body, dorsal view, length – 1.7 mm; 2 – aedeagus in dorsal view; 3 – aedeagus in lateral view. Scale bars: 0.25 mm.