A revision of Cissidium Motschulsky (Coleoptera: Ptiliidae) with seventy seven new species Author Darby, Michael text European Journal of Taxonomy 2020 2020-04-02 622 1 188 journal article 22458 10.5852/ejt.2020.622 9cb3ea96-0ee4-40b4-8006-19b5fed80b46 3777282 9CD3B2CD-F072-4994-8CA9-24145D343401 Cissidium lisae Darby, 2015 Figs 2F , 5F , 94 Material examined Holotype BOLIVIA • ♀ ; Santa Cruz Dep., W Amboro NP, Siberia Pass env.; 17°50′12″ S , 64°42′08″ W ; 2450 m a.s.l. ; 28 Nov. 2013 ; sifting litter ; Winkler app. extr. ; P. Baňař leg.; UASC . Paratypes BOLIVIA • 1 ♀ ; same collection data as for holotype; MMBC • 1 ♀ ; Santa Cruz Dep., W of Amboro NP, Siberia Pass env., 17°50′25″ S , 64°41′58″ W ; 2481 m a.s.l. ; 2013; sifting litter ; Winkler app. extr. ; P. Baňař leg.; BMNH . Supplementary description The following description amplifies the type description of Darby (2015) , by adding more details of the meso- and metaventral characters, in order to conform with the entries in the present paper. SIZE. Habitus ( Fig. 94A ), length 0.80 mm . COLOUR. Yellow brown, antennae and legs dusky yellow. HEAD. Width across eyes 0.22 mm ; antennomeres 3–11 length 0.45 mm long ( Fig. 2F ); mentum as Fig. 4B. PRONOTUM. Length 0.19 mm , width 0.28 mm , sparsely pubescent and foveolate; lateral margins sharply angled, strongly concave posteriad to rectangular hind angles, less markedly concave anteriorly to distinct obtusely rounded front angles ( Fig. 94B ). ELYTRA. 0.55 mm long, 0.41 mm wide, pubescence a little shorter and more decumbent than on the pronotum. MESOVENTRITE. Median process of the very narrow collar pointed; mid-keel strongly widened anteriorly, hind angles with carinae to mesocoxal anterior borders, bluntly raised medially before junction with keel; keel with ± five setae, parallel-sided to rounded termination at base of mesocoxae ( Fig. 5F ); humeri toothed with flat, sharply pointed carinae reaching posteriorly to mid-point of mesoventrite, mesoventral lateral margins entirely effaced, present as apodemes ( Fig. 94C ). METAVENTRITE. Spines very small. GENITALIA. Female spermatheca globular. Males not known. Remarks Differs from the other Bolivian Cissidium , except C. sawadai Darby, 2015 , by the long and narrow elytra and distinguishable from that species by the strongly tapering mid-keel.