Eachamia bismarckiana, Bordoni, Arnaldo, 2010

Bordoni, Arnaldo, 2010, Xantholinini from the Australian and Oriental Regions. New genus, new species and new records (Coleoptera, Staphylinidae). 208 ° contribution to the knowledge of the Staphylinidae, Zootaxa 2538, pp. 38-46 : 39-40

Eachamia bismarckiana n. sp.

T ype material. Holotype 3: Bismarck Island: Mussau Talumalans, Noona Dan. Exp. 61–62, leg.? 10.II.1962 (ZMUC); paratypes: same data, 1 Ƥ (ZMUC), 1 Ƥ (cB); Manus Lorengan, Noona Dan. Exp. 51.62, leg.? 19.VII.1962, 1 Ƥ (cB).

Description. Body brown reddish, shiny, 11 mm long; length from anterior margin of head to posterior margin of elytra: 5 mm. Similar to Eachamia corusca Bordoni, 2005 from Queensland, but wider, with bigger head, wider and protruding eyes. Head with a big puncture near the internal margin of eyes; two punctures in parallel laterally, under the eyes; some punctures at the inferior margin of head; all the punctures with long and erect setae. Pronotum wider than that of E. corusca and robust, covered by very fine micro punctures, with oblique anterior margins and rounded anterior corners, slightly sinuate sides; elytra bigger, wider and longer, sub rectangular, with only 3 series of deep and scattered punctures, with humeri strictly rounded and sub parallel sides.

Tergite and sternite of male genital segment as in figs. 13–14. Aedeaagus (fig. 15) moderately large (1.6 mm long), with asymmetrical robust parameres; internal sac large, with fine scales.

Distribution. Known from the type locality on the Bismarck Island.

Etymology. The specific epithet is based on the type locality.

Notes. This is the first Eachamia species known from the Bismarck Island.