Cephennula poringana, Jałoszyński, Paweł, 2011

Jałoszyński, Paweł, 2011, Ten new species of Cephennula Jałoszyński (Coleoptera, Staphylinidae, Scydmaeninae) from Malaysia, Zootaxa 3113, pp. 36-52 : 43-44

Cephennula poringana sp. n.

( Figs. 7 , 21, 22)

Holotype: E MALAYSIA: 3, two labels: " SABAH: Poring Hot \ Springs, 550-600m \ 9.V.1987 \ Burckhardt - Löbl" [white, printed]; " CEPHENNULA \ poringana m. \ det. P. Jałoszyński, 2011 \ HOLOTYPUS " [red, printed] ( MHNG).

Diagnosis. Body between 0.8 and 0.9 mm in length; antennal club strongly flattened and compact; vertex with median impunctate area; punctures on median part of frons sparser than those on sides; median part of pronotum with moderately large punctures separated by spaces equal to and wider than puncture diameter; sublateral pronotal carinae as long as pronotum; subhumeral carinae nearly as long as 1/ 2x EL and nearly twice as long as humeral carinae; aedeagus in ventral view drop-shaped, with moderately narrow, triangular and blunt apex; endophallus with two pairs of elongate sclerites—short and nearly straight median pair and long lateral pair strongly curved laterally.

Description. Body of male ( Fig. 7 ) strongly convex, elongate, with shallow but distinct constriction between pronotum and elytra, moderately glossy, light brown, covered with yellowish vestiture, legs and antennae slightly lighter. BL 0.85 mm.

Head broadest at large, coarsely faceted and strongly convex eyes, HL 0.13 mm, HW 0.24 mm; vertex and frontoclypeal area convex; supraantennal tubercles barely marked. Punctures on dorsum of head unevenly distributed, large and deep, on sides of vertex and frons dense, median part of frons and clypeus with sparser punctures, separated by spaces 1.5– 2 x wider than puncture diameter, median part of vertex impunctate; setae short and sparse, suberect. Antennae with strongly enlarged, flattened and compactly assembled antennomeres X–XI and moderately enlarged antennomere IX, so that club appears two-segmented, AnL 0.45 mm; antennomere I about 1.3x as long as broad; II 2.2x as long as broad; III as long as broad; IV 1.2x as long as broad; V–VII subequal in length and width, each 1.3x as long as broad; VIII slightly broader but shorter than VII, 1.1x as long as broad; IX distinctly broader and slightly longer than VIII, about as long as broad; X much longer and broader than IX, distinctly transverse; XI slightly narrower than X, 1.5x as long as broad.

Pronotum approximately semielliptical, broadest near middle; PL 0.25 mm, PW 0.40 mm, anterior margin weakly rounded; lateral margins distinctly microserrate, strongly rounded in anterior half, nearly straight in posterior 1/4 and slightly convergent towards sharp and acute hind angles; posterior margin very weakly bisinuate; sublateral carinae as long as pronotum. Transverse ante-basal groove shallow but sharply marked and slightly arcuate; sublateral ante-basal foveae small and shallow; lateral ante-basal foveae slightly deeper and larger. Punctures on median part of pronotal disc slightly smaller than those on head, deep and sparse, punctures between sublateral pronotal carinae and lateral margins of pronotum distinctly larger and denser than those in middle, nearly adjacent to each other and coarse; setae sparse, moderately long, suberect.

Elytra strongly convex, oval, broadest between middle and anterior 1/3; EL 0.50 mm, EW 0.43 mm, EI 1.18; base of each elytron with rudimentary basal fovea located slightly closer to scutellum than to base of humeral carina; subhumeral carinae distinct, nearly as long as 1/ 2x EL and nearly twice as long as slightly less distinct humeral carinae. Punctures on elytra much smaller than those on head and pronotum, fine and shallow but distinct, separated by spaces 1– 2 x as wide as puncture diameter; setae similar as those on pronotum.

Legs moderately long and slender; pro- and mesotibiae nearly straight, metatibiae slightly curved.

Aedeagus (Figs. 21, 22) in ventral view drop-shaped with moderately narrow, subtriangular and blunt apex; AeL 0.18 mm. Endophallus darkly sclerotized, with two pairs of elongate sclerites—very short and nearly straight median pair and very long lateral pair strongly curved laterally; parameres slender, nearly reaching apex of median lobe, each bearing single apical seta.

Female. Unknown.

Distribution. East Malaysia (Borneo: Sabah).

Etymology. Locotypical, after the Poring resort.

Figures

FIGURES 3 – 7. Habitus of males. 3 ― Cephennula densepunctata sp. n.; 4 ― Cephennula gemina sp. n.; 5 ― Cephennula minutissima sp. n.; 6 ― Cephennula penrissenana sp. n.; 7 ― Cephennula poringana sp. n. Scale bars: 0.2 mm.