Acrotrichis minuscula Johnson, 1969

Darby, Michael, 2014, Studies of Madagascan Ptiliidae (Coleoptera) 3: The genus Acrotrichis including twenty seven new species, Zootaxa 3866 (2), pp. 151-201 : 187-188

Acrotrichis minuscula Johnson, 1969

(Figs. 25A–H)

Habitus Fig. 25A. Length 0.61 mm. Antennomeres 3–11 0.24 mm long Fig. 25C. Width across the eyes 0.22 mm. Chaetotaxy of mentum and submentum Fig. 25H. Pronotum 0.32 mm wide, 0.18 mm long, sides slightly sinuate before the posterior angles Fig. 25B. Elytra 0.34 mm long, 0.31 mm wide. Posterior margin of mesoventral collar slightly sloped at shoulders Fig. 25F. Posterior margin of metaventrum and metacoxal plates Fig. 25G.

Male: aedeagus Fig. 25E.

Female: spermatheca Fig. 25D.

Remarks. Described by Johnson on the basis of 11 examples from the Baie d’Antongil, Ambohitsitondroina, leg J. Vadon in January and October 1959. The form of the genitalia will quickly distinguish this species.

Distributional data. 11 examples as above. 2 examples, Ranomafana N.P., RNF/16/2011, sifting litter, Winkler app.extr., S.21˚14’57.9” E.47˚24’22.9”, 1138 m, 16.iv.2011, L.S.Rahanitriniaina & R. Raveloson (BMNH); 11 examples, Ranomafana N.P., sifting, S.21˚14’51” E.47˚24’13”, 1079 m, 16–18.xi.2010, P. Banar (BMNH); 1♀, Ranomafana N.P., Vatoharanana RNF Sept 2012/09 GPS 209, sifting litter, Winkler app. extraction, S.21˚16’59.7” E.47˚25’30.3”, 1126 m, 5.x.2012, L.S.Rahanitriainia (BMNH); 1 example, Ambohitantely Spec. Res., ABT/10/2011, sifting plant residues under Pandanus, Winkler app. extr., S. 18˚11’39.2” E. 47˚17’12.6”, 1674m, 19.iv.2011, L.S.Rahanitriainia & R. Raveloson (BMNH).