Revision and phylogenetic analysis of the African genus Ischnopoderona (Scheerpeltz, 1974) new status (Coleoptera, Staphylinidae: Aleocharinae) Author Paśnik, Grzegorz text Zootaxa 2007 1412 1 54 journal article 10.5281/zenodo.175634 2e26e5f6-6e3f-4779-af1c-043196dc7c49 1175­5326 175634 Ischnopoderona gracilicornis ( Scheerpeltz, 1974 ) , comb. n. ( Figs. 3 , 18–20 , Map 1) Tachyusa ( Ischnopoderona ) gracilicornis Scheerpeltz, 1974 : 229 . Type material. Holotype : ɗ: South Africa , Cape Prov., Kokstad, 6.III.1951 , Brinck and Rudebeck ( MZLU ). Paratypes : 2ΨΨ: same data as holotype ( MZLU ); ɗ: same data as holotype ( NMW ). Additional material. Angola : 5 mls. NE Negola, damp leaf litter, 25.III.1972 , 2 exx ( BMNH ). Democratic Republic of the Congo : Brazzaville, Bouenza, catarract, sifted in float, 30.XI.1963 , Endrödy­Younga, 1 ex ( HNHM ). Namibia : Mahango Game Reserve, Kwetche picnic site, banks of Okavango, shore washing, 30.III.1999 , M. Uhlig, 9 exx ( ZMHB ), 2 exx ( ISEA ); Kavango, Mahango Game Reserve, Picnic site, Okavango banks, sifting flood refuse, 1–4.III.1994 , M. Uhlig, 18 exx ( ZMHB ), 2 exx ( ISEA ). Republic of South Africa : Cape Province, Bontebok National Park, river bank, 15.XI.1993 , M. Uhlig, 29 exx ( ZMHB ), 5 exx ( ISEA ); Natal , Dragon Peaks Park Pessort, Sterkspruit River, shore litter, 18.XI.1996 , M. Uhlig, 1 ex ( ZMHB ); Transvaal, Limpopo River, sandy stream banks, 25–26. IV.1972, 2 exx ( BMNH ); Transvaal, Nelshoogte galery for below Station, shore washing, 2.XII.1986 , Endrödy­Younga, 12 exx ( TMSA ), 1 ex ( ISEA ); Transvaal, Nelspruit National Reserve, rivulet valley, 18.XII.1986 , Endrödy­Younga, 7 exx ( TMSA ), 1 ex ( ISEA ); Ciskei Amatole, Pirie Forest, shore washing, 8.XII.1987 , Endrödy­Younga, 2 exx ( TMSA ); Cape, Swartberg, Meiringspoort, shore washing, 1.XI.1993 , Endrödy­Younga, 1 ex ( TMSA ); Kruger National Park, Skukuza, fish twail, UV light, 8.III.1996 , Endrödy­Younga, 1 ex ( TMSA ); Waterberg, Matlabas river, water collecting, 6.X.1995 , Endrödy & Bellamy, 2 exx ( TMSA ). Zambia : 29 km NW Chipata, Kamanga, 825 m , rivulet banks sifting, 21.III.1993 , M. Uhlig, 1 ex ( ZMHB ). Redescription. Body. Length 2.8–3.4 mm , convex, parallel­sided, glossy; body colour reddish­brown to dark brown; tergites V–VII black, antennae brown with antennomeres 1–2 and 11 yellow, legs yellow. FIGURES 18–20. Ischnopoderona gracilicornis (Scheerpeltz) : 18—aedeagus in lateral view, 19—aedeagus in ventral view, 20—spermatheca. Head circular in outline, convex; eyes relatively 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 minute, pinprick­like and sparse. Antennae long, extending to 1/2 of elytra, slightly increasing in width apically, antennomeres 2 and 3 subequal in length, antennomeres 4–10 longer than wide, decreasing in length, antennomere 11 nearly coniform. Pronotum quadrate, convex, lateral sides sinuately narrowed to obtuse hind angles; before base with small and shallow transverse impression; surface without microsculpture; puncturation in basal 2/3 fine and dense, in anterior 1/3 minute, pinprick­like and sparse; pubescence at midline directed posteriorly in apical 1/4 and anteriorly in basal 3/4. Elytra subquadrate, at suture shorter than pronotal length at midline; surface without microsculpture; puncturation minute, pinprick­like and sparse. Abdomen widened posteriorly, bases of tergites III–V each with deep transverse impression, first impression coarsely punctate, second and third impressions smooth, impunctate; tergal puncturation minute, pinprick­like and sparse; surface without microsculpture. Male. Aedeagus as in Figs. 18–19 . Female. Spermatheca as in Fig. 20 . Remarks. Ischnopoderona gracilicornis is very similar to I. externa , from which it can be distinguished by the second abdominal transverse impression smooth, impunctate (distinctly punctate in I. externa ), the tergal puncturation sparse (dense in I . externa ), the elongate antennomere 10 (quadrate in I. externa ), the antennomere 11 yellow, much paler than preceding antennomeres (brown, coloured like preceding antennomeres in I. externa ) and by the shape of the aedeagus. Distribution. Southern Africa (Map 1). MAP 1. Distribution of Ischnopoderona sp.