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 mossmanensis sp. n. ( Figs 108–112 , 123 ) Type material. Holotype : AUSTRALIA ( QUEENSLAND ): ♂ , two labels: "Mossman Bluff Track, / 5-10km W Mossman, N.Qld. / 20 Dec 1989 – 15 Jan 1990 / Monteith,Thompson& ANZES / Site 2, 360m , flt. intercept" [white, printed], " CEPHENNOMICRUS / mossmanensis m. / P. Jałoszyński, '18 / HOLOTYPUS " [red, printed] (QM). Diagnosis. BL 0.70 mm ; body moderately stout, EI 1.23; antennomeres III–IX each about as long as broad, X transverse; antennal club dimerous and sharply delimited; inner pair of pronotal antebasal pits not connected, frons and vertex in males unmodified; aedeagus stout, subtriangular, with a simple (uncoiled) flagellum, lacking any darkly sclerotized structures. Description. Body of male ( Fig. 108 ) moderately stout and strongly convex, uniformly reddish brown; setae on head, pronotum and elytra very short, dense and recumbent, discernible at magnification 80 ×. BL 0.70 mm . Head broadest at large, strongly convex and coarsely faceted eyes, HL 0.08 mm , HW 0.20 mm ; frons and vertex in males unmodified, confluent, weakly and evenly convex; supraantennal tubercles weakly elevated. Punctures fine and inconspicuous. Antennae short, with sharply delimited dimerous club, AnL 0.29 mm , antennomeres I–II distinctly elongate, III–IX each about as long as broad, X distinctly transverse, XI about as long as broad. Pronotum subtrapezoidal, broadest near anterior fourth; PL 0.23 mm , PW 0.28 mm ; anterior and posterior margins weakly arcuate, anterior corners broadly rounded, sides strongly rounded in anterior third and indistinctly concave in posterior half, posterior corners distinctly obtuse-angled; base with two lateral pairs of small but distinct pits, transverse groove absent; lateral pronotal carinae distinctly serrate. Punctures on pronotal disc fine, inconspicuous. Elytra oval, broadest distinctly anterior to middle; EL 0.40 mm , EW 0.33 mm , EI 1.23; humeral calli distinct; apices separately rounded. Punctures similar to those on pronotal disc. Legs moderately long and slender, unmodified. Aedeagus ( Figs 109–112 ) moderately elongate; AeL 0.10 mm ; median lobe in ventral view drop-shaped, endophallus weakly sclerotized and simple, with nearly straight flagellum rapidly broadened proximally and without any elongate sclerites; each paramere with three apical setae of which one is distinctly shorter. FIGURES 103–112. Cephennomicrus lordhowei (Franz) (103–107) and C. mossmanensis sp. n. (108–112). Dorsal habitus (103, 108); aedeagus in ventral (104, 106, 109, 111) and lateral (105, 107, 110, 112) views. Female. Unknown. Distribution ( Fig. 123 ). Queensland . Etymology. Locotypical, after Mossman town. Remarks. This unremarkable species can be identified only on the basis of its uniquely shaped aedeagus with the endophallus lacking any darkly sclerotized structures and with a simple flagellum.