Studies of Bolivian Ptiliidae (Coleoptera) 2: The subfamily Acrotrichinae including two new genera Petrotrichis and Microtrichis, and eight new species of Acrotrichis Author Darby, Michael text Zootaxa 2015 3999 2 190 210 journal article 10.11646/zootaxa.3999.2.2 189ae054-4725-44a7-a7b7-150eda7b7e71 1175-5326 241696 AB50C281-C0D7-4D30-B364-389107D924F4 Acrotrichis cincinna sp. n. ( Figs. 3A –I) Habitus Fig 3A . Length 1.06 mm . Colour dark brown, antennae and legs dusky yellow. Antennomeres 3–11 0.39 mm long Fig. 3 C. Mentum and submentum chaetotaxy Fig. 3 E. Width across eyes 0.38 mm . Pronotum 0.64 mm wide, 0.32 mm long, sides evenly rounded and without an insinuation before the hind angles when viewed at 45°, Fig. 3 C. Elytra 0.62 mm long, 0.63 mm wide. Mesoventral collar with a median incision Fig. 3 I. Posterior margin of metaventrum and metacoxal plates Fig. 3 H. Pygidium, Fig. 3 F, without setae on the anterior margin and with pairs of longer setae as Fig. 2 F (rubbed off from the specimen depicted in Fig. 3 F) Male : aedeagus Fig 3 D; ventrites 7 and 8 without any distinctive characters. Female : spermatheca with a very long, loosely formed, coiled duct, Fig. 3 G. Etymology . From the Latin cincinnus meaning a curled hair and referring to the form of the spermathecal duct. Diagnosis . The form of the mesoventral collar and the spermatheca distinguish this species. Type data : Holotype : ♂, Bolivia , Santa Cruz, Amboro National Park, Los Volcanoes, c. 1000m , S. 18° 06' W .63° 36', 20/xi–12/xii/2004 , MV light sheet, Barclay, M.V.L. & Mendel, H. ( BMNH ). Paratypes : 2 exs, same data as holotype ( BMNH ); 18 exs, Bolivia , Santa Cruz, Amboro National Park, Los Volcanoes, c. 1000m , S. 18°06' W .63°36', 20/xi–12/xii/2004 , Flight Interception Trap, Mendel, H. & Barclay, M.V.L. ( BMNH ); ♀, GPS36, BOL / Nov 2013/11 , Bolivia 2013, Santa Cruz dep., W. Amboro NP, Barientos, 1817m , 29.xi , S. 18°06'00" E .63°48'05", sifting litter, Winkler app. extr., P.Baňař lgt. ( UASC / MMBC ); 2♂ 3♀, GPS23, BOL / Nov 2013 /, Bolivia 2013, Cochabamba dep., ca 8 km E. of Villa Tunari, 298m , 22.xi. , S. 16°59'12" E .63°48'05", sifting rotten wood, Winkler app. extr., P.Baňař lgt. ( UASC / MMBC ).