Ischnopoda meridionalis ( Bernhauer, 1925 ) PA–NIK, 2006

PA – NIK, GRZEGORZ, 2006, Taxonomy and phylogeny of the World species of the genus Ischnopoda Stephens, 1837 (Coleoptera, Staphylinidae: Aleocharinae), Zootaxa 1179 (1), pp. 1-96 : 58-60

Ischnopoda meridionalis ( Bernhauer, 1925) comb. n. ( Figs. 56–57 )

Tachyusa meridionalis Bernhauer, 1925: 252 .

Type material. Holotype: ♂: Argentina, Prov. Tucuman, Famailla, Weiser ( FMNH).

Redescription. Body. Length 2.7 mm, convex, parallel­sided, glossy; body colour brown, elytra reddish brown, abdomen black with tergites 3–5 brownish red, legs yellow, antennae brown with antennomeres 1–3 yellow.

Head quadrate in outline, convex, broadly and shallowly impressed medially; eyes large, moderately protruding from lateral contours of head, length of each seen from above subequal to that of postocular region; surface of head without microsculpture; puncturation fine and dense. Antennae long, clearly increased in width apically, antennomeres 2 and 3 subequal in length, antennomeres 4–8 longer than wide, antennomeres 9–10 quadrate, antennomere 11 nearly conical.

Pronotum slightly transverse, lateral sides gradually narrowed in straight line to obtuse hind angles; before base with moderately small and shallow transverse impression, broadly and deeply impressed medially; surface without microsculpture; puncturation very fine, pinprick­like and dense; pubescence at midline directed entirely anteriorly.

Elytra quadrate, at suture as long as pronotum at midline; surface lacking microsculpture; puncturation fine and dense.

Abdomen parallel­sided, bases of tergites 3–5 each with deep transverse impression, impressions coarsely and densely punctuate, tergal puncturation fine and dense, surface without microsculpture.

Male. Aedeagus as in Figs. 56–57 .

Female unknown.

Remarks. Ischnopoda meridionalis is similar to I. impressa , from which it can be distinguished by the head less impressed medially, the antennomeres 2 and 3 subequal in length, the yellow legs and by the shape of the aedeagus.

Distribution. The species is known only from the type locality in Argentina.

Figures

FIGURES 56–57. Ischnopoda meridionalis (Bernhauer): 56—aedeagus in lateral view, 57— aedeagus in ventral view.