Studies of Madagascan Ptiliidae (Coleoptera) 3: The genus Acrotrichis including twenty seven new species Author Darby, Michael text Zootaxa 2014 3866 2 151 201 journal article 10.11646/zootaxa.3866.2.1 f0c34243-cd3b-49fa-b4b7-ff17bc96c362 1175-5326 249555 2165AC20-3607-4CF2-A1A6-DB4CA45D7E22 Acrotrichis absona sp. n. ( Figs. 3A –E) Habitus Fig. 3A . Length 0.98 mm . Colour blackish, the elytra appearing brown through transmitted light; antennae and legs brown. Antennomeres 3–11 0.38 mm long Fig. 3 C. Width across eyes 0.35 mm . Mentum and submentum chaetotaxy Fig. 3 E. Pronotum 0.61 mm wide, 0.36 mm long, sides evenly rounded not sinuate at hind angles Fig. 3 B. Elytra 0.54 mm long, 0.61 mm wide. Mesoventral collar with a shallow median excision, shoulders sloped and anterior projections slightly undercut Fig. 3 F. Metaventral posterior margin between metacoxae wide Fig. 3 G. Male : not known. Female : spermatheca Fig. 3 D. Etymology . Johnson ms name. Remarks . The undercut forward projections of the mesoventral collar will distinguish this species from all but magnifica from which it may be separated by its smaller size, the less angled pronotal sides, and the darker antennae. Type data . Holotype : ♀, Perinet, 15.iv.1969 , forest of transition, 928 m , leg. H. Franz (MM). 34 examples, same data as holotype ; 2 examples, Ranomafana N.P., RNF/12/2011, sifting litter, Winkler app. extr. S.21˚14’51” E.47˚24’09.1”, 1118 m , 15.iv.2011 , P. Banar & R. Raveloson ( BMNH ); 44 examples, Ranomafana N.P., RNF/20/ 2011, sifting forest litter on old road, Winkler app. extr. S.16˚18’05.1” E.46˚49’08.3”, 89 m , 23.iv.2011 , L.S.Rahanitriniaina & R.Ravelson ( BMNH ).