Paramisolampidius csorbai, Merkl & Masumoto, 2008

Merkl, O. & Masumoto, K., 2008, A Review Of Taiwanese Paramisolampidius (Coleoptera, Tenebrionidae: Cnodalonini), Acta Zoologica Academiae Scientiarum Hungaricae 54 (1), pp. 1-11 : 3-6

publication ID	https://doi.org/ 10.5281/zenodo.5731866
DOI	https://doi.org/10.5281/zenodo.6908154
persistent identifier	https://treatment.plazi.org/id/03D7E342-FF87-FFEC-C73D-FE58FCD6FC33
treatment provided by	Felipe
scientific name	Paramisolampidius csorbai
status	sp. nov.

Treatment

Paramisolampidius csorbai sp. n.

( Figs 2 View Figs 2–6 , 7 View Figs 7–11 , 12 View Figs 12–15 )

Type material – Holotype, male, “ Taiwan, Nantou Pr., / Hohuanshan Exp. Stat., / 24.09’ N, 121.17’ E”, “from bark at night / 3100 m, 27. IX. 1999 / G. CSORBA & B. HERCZIG”. It is deposited in the HNHM.

Description – General: body elongate, constricted between fore and hind bodies gently convex, glabrous; colour piceous, apical half of antennae paler in colour, meso- and metasterna, tibiae and claws dark brown, hairs on ventral surface of tibiae pale golden; dorsal surface moderately shining, slightly sericeous ( Fig. 2 View Figs 2–6 ). Body length 13 mm.

Head: gently convex in posterior part, gradually inclined anteriorly, surface with microscopic isodiametrical reticulation and small punctures; basal membrane of labrum exposed. Clypeus transversely elliptical, anterior edge straight. Fronto-clypeal suture complete, rounded and sulcate. Genae weakly swollen, subparallel-sided before eyes, then rounded and meeting edge of clypeus at an angle of about 170°. Eyes obliquely ovate, rounded inwardly, medium-sized for a Paramisolampidius , separated by distance equal to 3 eye widths. Inner margins of eyes sulcate from behind to middle of the eye ( Fig. 7 View Figs 7–11 ), width of ocular sulcus about 1/4 times the width of transverse diameter of an eye. Antennae slightly clavate, reaching base of pronotum, terminal segment tear-shaped, segment length ratios from base to apex as follows: 2.7, 1.0 (shortest segment), 2.6, 1.9, 1.6, 1.6, 1.5, 1.5, 1.4, 1.3, 2.6. Mentum with strong anteromedian convexity, with elevated longitudinal keel.

Prothorax: barrel-shaped, barely longer than wide, widest immediately before middle; apex a little wider than base; sides gently and evenly rounded; anterior edge finely margined except along major part of middle; base nearly straight, feebly sinuous in lateral parts, strongly margined in major part of middle; pronotal carina absent; anterior angles rounded, not prominent, posterior angles truncate; pronotal disc gently convex, surface with microscopic isodiametrical reticulation and widely scattered very small punctures and with a shallow mid-longitudinal impression; the coarsest punctures are along midline. Hypomeron with a few scattered punctures. Prosternum with very few small punctures and obsolete wrinkles; prosternal process shallowly bifurcate.

Pterothorax: scutellum equilaterally triangular, weakly raised in middle, microscopically sculptured, irregularly punctate laterally. Elytra oblong elliptical, gently convex, highest at the middle, 1.8 times as long as wide, 2.86 times the length and 1.49 times the width of pronotum, widest at the middle; surface with microscopic isodiametrical reticulation, punctato-striate, striae shallow with punctures small, widely and rather irregularly set; intervals feebly convex, with scattered very small punctures and sparse, transverse wrinkles; humeri reduced; apices rounded; epipleuron narrow, ending just before apex, epipleural carina weak, not visible from above. Mesoventrite sparsely punctate. Mesepisternum, mesepimeron and metepisternum impunctate. Metaventrite impunctate, with Y-shaped discrimen.

Legs: long, femora strongly clavate, thickened in middle, with basal parts thin, finely and sparsely punctate; protrochanter angulate distally; protibia gently curved; pro- and mesotibia with a small denticle just before apex of ventral surface; metatibia weakly bent backwards; length ratios of protarsomeres: 1.9, 1.3, 1.0 (shortest segment), 1.2, 3.6; mesotarsomeres: 2.2, 1.5, 1.3, 1.2, 3.8; metatarsomeres: 3.9, 1.7, 1.5, 4.3.

Abdomen: intercoxal process of first ventrite twice as wide as long; ventrites sparsely and finely punctate; last ventrite rounded at apex. Aedeagus subfusiform, 2.05 mm in length, 0.45 mm in width, gently curved in lateral view; the very apex broken in the holotype ( Fig. 12 View Figs 12–15 ).

Diagnosis – This new species can be easily distinguished from other species described from Taiwan by its elongate and slender body with very finely punctate dorsal surface and incomplete ocular sulcus. See also the subsequent key to the Taiwanese species of the genus Paramisolampidius .

Distribution – Only the holotype is known, which is from Hohuanshan in Nantou county. The locality falls into the area of P. shirozui . Although one specimen does not allow drawing conclusions about the niche segregation of these two species, it is probable that P. csorbai and P. shirozui are separated by the altitude, with P. csorbai in Tsuga-Picea and Abies (upper montane and subalpine) zones and P. shirozui in Machilus-Castanopsis and Quercus (submontane and montane) zones, including the montane mixed coniferous forests.

Biology – The specimen was collected from the bark of dead trees at night using a torch – a simple but highly effective method of collecting nocturnal saproxylic and mycetophagous tenebrionid beetles.

Etymology – This new species is dedicated to Dr. GÁBOR CSORBA (Curator of Mammals, Hungarian Natural History Museum, Budapest), one of the collectors of the holotype. In spite of his different profession, he is an enthusiastic and productive insect collector who brought back valuable materials from his numerous trips to Southeast Asia.