Cephennomicrus proserpinensis, Jałoszyński, 2018

Jałoszyński, Paweł, 2018, Revision of Cephennomicrus of Australia (Coleoptera, Staphylinidae, Scydmaeninae), Zootaxa 4422 (2), pp. 151-183: 161-163

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Cephennomicrus proserpinensis

sp. n.

Cephennomicrus proserpinensis   sp. n.

( Figs 37–41 View FIGURES 32–41 , 123 View FIGURE 123 )

Type material. Holotype: AUSTRALIA (QUEENSLAND): ♂, three labels: "Brandy Creek QLD / 18kmE Proserpine / 100m 21 June –/ 10 Aug 1982 / S. & J.Peck SBP43" [white, printed], "flight intercept / trap / rainforest" [white, printed], " CEPHENNOMICRUS   / proserpinensis   m. / P. Jałoszyński, '18 / HOLOTYPUS" [red, printed] (ANIC).

Diagnosis. BL 0.80 mm; body moderately stout, EI 1.19; antennomeres III –IX about as long as broad; antennal club dimerous, sharply delimited and strongly flattened; inner pair of pronotal antebasal pits connected by a faint transverse groove; frons in males unmodified, aedeagus slender, with large oval diaphragm located on ventral wall of median lobe.

Description. Body of male ( Fig. 37 View FIGURES 32–41 ) moderately stout, uniformly reddish brown; setae on head, pronotum and elytra very short, dense and recumbent, but discernible at magnification 40 ×. BL 0.80 mm.

Head broadest at large, strongly convex and coarsely faceted eyes, HL 0.10 mm, HW 0.23 mm; frons and vertex unmodified, confluent, evenly and weakly convex; supraantennal tubercles weakly elevated. Punctures fine and inconspicuous. Antennae short, with sharply delimited dimerous and strongly flattened club, AnL 0.38 mm, antennomeres I –II distinctly elongate, III –IX as long as broad, X distinctly transverse, XI about as long as broad.

Pronotum subtrapezoidal, broadest near anterior fourth; PL 0.23 mm, PW 0.33 mm; anterior margin arcuate, posterior margin nearly straight, anterior corners broadly rounded, sides 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, inner pair connected by an indistinct, shallow and diffuse transverse groove; lateral pronotal carinae indistinctly serrate. Punctures on pronotal disc fine, inconspicuous.

Elytra oval, broadest distinctly anterior to middle; EL 0.48 mm, EW 0.40 mm, EI 1.19 humeral calli distinct; apices separately rounded. Punctures similar to those on pronotal disc.

Legs moderately long and slender, unmodified.

Aedeagus ( Figs 38–41 View FIGURES 32–41 ) strongly elongate; AeL 0.25 mm; median lobe in ventral view with very short and indistinctly delimited distal part with its laterodistad corners angulate, flagellum not coiled; each paramere with one long apical and one short subapical seta.

Female. Unknown.

Distribution ( Fig. 123 View FIGURE 123 ). Queensland.

Etymology. Locotypical, after Proserpine, a town in the Whitsunday Region, Queensland, Australia.

Remarks. This species is also externally unremarkable and examination of the aedeagus is necessary for identification.