Revision of Cephennomicrus of Australia (Coleoptera, Staphylinidae, Scydmaeninae) Author Jałoszyński, Paweł text Zootaxa 2018 4422 2 151 183 journal article 29149 10.11646/zootaxa.4422.2.1 a10328ef-c215-4567-aa60-ff1ac514d175 1175-5326 1455555 70F972E5-D1B8-4A18-9BEB-8C7345C30AD0 Cephennomicrus baroalbanus sp. n. ( Figs 74–78 , 123 ) Type material. Holotype : AUSTRALIA ( NORTHERN TERRITORY ): ♂ , three labels: " 12.50S 132.52E NT / Baroalba Ck.Gorge / 19km Ex N Mt.Cahill / 16 Nov. 1972 / R.W. Taylor" [white, printed], "Berlesate/ ANIC 446 / rainforest" [white, printed], " CEPHENNOMICRUS / baroalbanus m. / P. Jałoszyński, '18 / HOLOTYPUS " [red, printed] ( ANIC ). Diagnosis. BL 0.80 mm ; body stout, EI 1.09; antennomeres III–IX each as long as broad; antennal club dimerous, sharply delimited and strongly flattened; inner pair of pronotal antebasal pits not connected; frons and vertex in males unmodified; aedeagus moderately elongate, in ventral view median lobe drop-shaped, endophallus complicated, containing four lateral bunches of needle-like sclerites connected at middle, subapical region of dorsal wall with paired setae. Description. Body of male ( Fig. 69 ) stout, uniformly reddish brown; setae on head, pronotum and elytra extremely short, dense and recumbent, barely discernible at magnification 80 ×. BL 0.80 mm . FIGURES 74–78. Cephennomicrus baroalbanus sp. n. . Dorsal habitus (74); aedeagus in ventral (75, 77) and lateral (76, 78) views. Head broadest at large, strongly convex and coarsely faceted eyes, HL 0.08 mm , HW 0.23 mm ; vertex and frons unmodified, confluent, weakly and evenly convex; supraantennal tubercles weakly elevated. Punctures fine and inconspicuous. Antennae short, with sharply delimited dimerous and strongly flattened club, AnL 0.33 mm , antennomeres I–II distinctly elongate, III–IX each as long as broad, X distinctly transverse, XI about as long as broad. Pronotum subtrapezoidal, broadest near anterior fourth; PL 0.25 mm , PW 0.36 mm ; anterior margin arcuate, posterior margin nearly straight, anterior corners broadly rounded, sides strongly rounded in anterior third and nearly straight in posterior half, posterior corners strongly obtuse-angled and blunt; base with two lateral pairs of small but distinct pits, transverse groove absent; lateral pronotal carinae indistinctly serrate. Punctures on pronotal disc fine, inconspicuous. Elytra oval, broadest distinctly anterior to middle; EL 0.48 mm , EW 0.44 mm , EI 1.09; humeral calli distinct; apices separately rounded. Punctures similar to those on pronotal disc. Legs moderately long and slender, unmodified. Aedeagus ( Figs 75–78 ) stout; AeL 0.20 mm ; median lobe in ventral view drop-shaped, endophallus moderately complicated, with four large and fused lateral bunches of long, needle-like sclerites; dorsal wall with paired setae in subapical region; each paramere with two apical and one subapical setae of equal length. Female. Unknown. Distribution ( Fig. 123 ). Northern Territory . Etymology. Locotypical, after Baroalba Creek. Remarks. Examination of the aedeagus is necessary to identify this species; the drop-shaped median lobe and two pairs of lateral bunches of needle-like sclerites connected at middle are unique for C. baroalbanus .