Neosclerus javanus ( BERNHAUER , 1920)

Assing, Volker, 2011, A revision of the genus Neosclerus C (Coleoptera: Staphylinidae: Paederinae), Beiträge Zur Entomologie = Contributions to Entomology 6 (1), pp. 89-148 : 134-135

Neosclerus javanus ( BERNHAUER, 1920) ; comb. n. ( Figs 162-163)

Lobochilus javanus BERNHAUER, 1920: 180 .

Type material:

Holotype : "J. B. Corporaal, Java - Preanger, Tjigembong, 6.45 / Lobochilus javanus Brh. , Typus unic. / Chicago NHMus. M.Bernhauer Collection / Holotypus  Lobochilus javanus Bernhauer , rev. V. Assing 2010 / Neosclerus javanus (Bernhauer) , det. V. Assing 2010 " ( FMNH).

Comment:

The original description is based on a single specimen ("Das bisher einzige Stück") from " Java: Preanger (Tjigembong)" collected by " Herrn J. B. Corporaal ... im Juni 1915 " ( BERNHAUER 1920). The holotype, a female, was located in the Bernhauer collection at the FMNH .

Redescription:

Body length 3.0 mm. Coloration: head blackish brown; pronotum brown; elytra yellowishbrown; abdomen dark-brown with reddish-brown apex; legs and antennae yellowish.

Head across eyes 1.18 times as wide as long; eyes very large, postocular region practically obsolete ( Fig. 162); punctation of dorsal surface coarse and dense, except for the sparsely punctate posterior portion ( Fig. 163); interstices without microsculpture and glossy; antenna approximately 0.9 mm long.

Pronotum approximately as long as wide, approximately 0.85 times as wide as head ( Fig. 162); punctation slightly less coarse and sparser than that of head; midline broadly impunctate; interstices without microsculpture and glossy.

Elytra relatively long, almost 1.05 times as long and 1.15 times as wide as pronotum; humeral angles marked ( Fig. 162); punctation moderately coarse, dense, and rather shallow. Hind wings

present.

Abdomen somewhat narrower than elytra; punctation fine, moderately dense on anterior tergites and sparse on posterior tergites; microsculpture almost obsolete on anterior tergites and slightly more distinct on posterior tergites; posterior margin of tergite VII with palisade fringe.

: unknown.

Comparative notes:

Among other macropterus NeosclerusNeosclerus species, N .. javanusjavanus is characterized particularly by the coarse punctation of the head and pronotum, as well as by the large eyes. Since the male sexual characters are unknown, the phylogenetic affiliations are unclear.

Distribution and bionomics:

This species has not been recorded again since its original description, which is based on a single specimen from Java collected in June.