Ischnopodametallica ( Cameron, 1950 ) 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 : 90

Ischnopodametallica ( Cameron, 1950) comb. n. ( Figs. 105–107 )

Amanota metallica Cameron, 1950: 54 .

Type material. Holotype: ♀: Congo Belge: P. N. A. [Parc National Albert], riv. Bishakishaki­Kamatembe (plaine lave), 2100 m, 7–23.I.1935, G. F. de Witte ( MRAC) . Paratypes: ♂ and ♀: Congo belge: P. N. A., près Mt. Kamatembe (Foret) 2200 m, 12.IV.1934, G. F. de Witte ( MRAC) ; ♂: Congo Belge: Ruanda, Lac N'Gando (pied volc. Karisimbi), 2400 m, 8.III.1935, G. F. de Witte ( BMNH) ; ♂: Congo Belge: P. N. A. Bishakishaki (riv. Kamatembe) (Plaine de lave), 2100 m, 7–23.I.1935, G. F. Witte ( BMNH) .

Redescription. Body. Length 2.2–2.5 mm, convex, parallel­sided, glossy; body colour brown, head black, abdominal tergites 3–4 brownish red, legs red, antennae brown with antennomeres 1–2 and 11 red.

Head circular in outline, convex, moderately broadly and shallowly impressed medially, much distinctly in male than in female; eyes large, moderately protruding from lateral contours of head, length of each seen from above longer than postocular region; surface of head without microsculpture; puncturation relatively coarse and dense. Antennae long, clearly increased in width apically, antennomere 3 shorter than 2, antennomere 4 longer than wide, antennomeres 5–8 as long as wide, antennomeres 9–10 wider than long, antennomere 11 nearly conical.

Pronotum quadrate, lateral sides concavely narrowed to obtuse hind angles; before base with moderately small transverse impression, broadly and deeply impressed medially in male and narrowly and shallowly in female; surface without microsculpture; puncturation coarse and dense; pubescence at midline directed entirely anteriorly.

Elytra transverse, at suture as long as pronotum at midline; surface without microsculpture; puncturation very fine, pinprick­like and moderately dense, much finer and sparser than that on pronotum.

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

Male. Aedeagus as in Figs. 105–106 .

Female. Spermatheca as in Fig. 107 .

Remarks. Ischnopoda metallica is closely related to I. proxima and I. submetallica but it can be distinguished from both these species by the elytral puncturation very fine, pinprick­like, much finer than that on pronotum, the antennomere 3 shorter than 2, the pronotal surface without microsculpture and by the shape of the aedeagus.

Distribution. Ischnopoda metallica is known only from Rwanda and Democratic Republic of the Congo.

Figures

FIGURES 105–107. Ischnopoda metallica (Cameron): 105—aedeagus in lateral view, 106— aedeagus in ventral view, 107—spermatheca.