Paraneseuthia bernierana, Jałoszyński, Paweł, 2013

Jałoszyński, Paweł, 2013, Three new species of Paraneseuthia Franz from Australia (Coleoptera, Staphylinidae, Scydmaeninae), Zootaxa 3702 (6), pp. 566-572 : 567-569

Paraneseuthia bernierana sp. n.

( Figs. 1, 4 , 5–6 )

Type material. Holotype: AUSTRALIA (WESTERN AUSTRALIA): ♂, four labels: " 14.07S 127.31E WA / CALM Site 10/2 / 14 km SSE of / Cape Bernier / Jan. 1989 / N. McKenzie" [white, printed], "Berlesate / ANIC 1277 / closed forest / litter" [white, printed], "Aust. Nat. / Ins. Coll." [green, printed], " PARANESEUTHIA / bernierana m. / det. P. Jałoszyński, '13 / HOLOTYPUS " [red, printed] ( ANIC).

Diagnosis. Aedeagus in ventral view weakly narrowing from middle to apex; without lateral subapical lobes; with broad lateral apical projections, each bearing single seta located near apex.

Description. BL 0.80 mm. Body of male ( Fig. 1 ) moderately convex, light brown, covered with vestiture slightly lighter than cuticle.

Head narrow in relation to pronotum (PW/HW 1.67), broadest at large and strongly convex eyes, HL 0.13 mm, HW 0.15 mm; vertex weakly convex; frons with weakly convex median area demarcated laterally by shallow elongate impressions; supraantennal tubercles indistinct. Punctures on vertex and frons inconspicuous, fine and sparse; setae sparse and short, suberect. Antennae slender, AnL 0.28 mm, antennomeres I–II elongate, III about as long as broad, IV–V slightly transverse, VI–X strongly transverse, XI about as long as IX–X together.

Pronotum semi-oval, broadest near base, slightly broader than long; PL 0.23 mm, PW 0.25 mm; anterior margin broadly and evenly rounded; lateral margins strongly rounded in anterior half and weakly rounded in posterior third; posterior pronotal corners slightly obtuse and blunt; posterior margin slightly arcuate; base with shallow but distinct transverse impression connected at each side with a distinct and nearly circular sublateral pit, lateral pits distinct and elongate, located anterolaterally in relation to sublateral pits. Punctures on pronotal disc fine and sparse; setae sparse but relatively long, suberect.

Elytra oval, broadest near middle; EL 0.45 mm, EW 0.33 mm, EI 1.38; humeral calli prominent, elongate.

Punctures on elytral disc more distinct than those on pronotum, small and shallow but obvious, separated by spaces subequal to puncture diameters; setae similar to those on pronotum, sparse, long and suberect. Hind wings well developed.

Legs moderately long and slender, unmodified.

Aedeagus ( Figs. 5–6 ) elongate; AeL 0.16 mm; in ventral view median lobe slightly asymmetrical in basal part and weakly narrowing distally; ventral membranous area ( Fig. 5 ; vma) large, circular and located near base; lateral subapical lobes absent; lateral apical projections ( Fig. 5 ; lap) present, slightly asymmetrical, each broad and tapering toward apex, with single subapical seta located on external margin; assemblage of median apical projections ( Fig. 5 ; map) asymmetrical, composed of lateral pair of elongate sclerites and recurved median copulatory piece; parameres slender, each with short apical and yet shorter subapical seta.

Female. Unknown.

Distribution. Northern part of Western Australia ( Fig. 4 a).

Etymology. The specific epithet is after the type locality, Cape Bernier.

Remarks. The GPS coordinates given on the label are misleading, " 14.07S 127.31E " is in fact " 14º07'S 127º31'E " (confirmed by A. Ślipiński).

The aedeagus of P. bernierana differs from male copulatory organs of all remaining Australian species of Paraneseuthia in its general shape (the median lobe weakly narrowing apically and without marked lateral subapical lobes), broad lateral apical projections each bearing a subapical seta, and the unusually large ventral membranous area. This aedeagus resembles those of P. bicolor Jałoszyński, 2010 and P. spinosa Jałoszyński, 2010 , both from Sumatra. However, the resemblance is slight and apical parts of the aedeagi are clearly different. Also, external characters of all Australian species of Paraneseuthia clearly differ from those known from the Sunda Islands.

Figures

FIGURES 1 – 4. Habitus of holotype males (1 – 3) and distribution of Paraneseuthia in Australia (4), filled circles ― described species, empty circles ― undescribed species known from females only. Paraneseuthia bernierana sp. n. (1, 4 a); P. dilatifurculata sp. n. (2, 4 b); P. angustifurculata (3, 4 c); P. carltoni Jałoszyński, 2011 (4 d); and P. booloumba Jałoszyński, 2011 (4 e).

FIGURES 5 – 10. Aedeagus in ventral (5, 7, 9) and lateral (6, 8, 10) views. Paraneseuthia bernierana sp. n. (5 – 6); P. dilatifurculata sp. n. (7 – 8); P. angustifurculata (9 – 10). Abbreviations: lap, lateral apical projection; lsl, lateral subapical lobe; map, median apical projection; vma, ventral membranous area.