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 upiense sp. nov. urn:lsid:zoobank.org:act: 5BE9BB51-1E41-4C45-8C89-4B3B15B91569 Figs 3A , 113 Etymology Named after Upi, the municipality in the Province of Maguindanao , Philippines , where the insect was collected. Material examined Holotype PHILIPPINES • ♂ ; Mindanao , Burungket , Upi , Cotobato Prov. ; 1500 ft a.s.l. ; 1–6 Jan. 1949 ; by waving fine meshed net over forest floor in late afternoon ; Werner leg.; FMNH . Description SIZE. Habitus ( Fig. 113A ), length 0.54 mm . COLOUR. Yellow brown, pubescence, legs and antennae dusky yellow. HEAD. With a shallow foveolate and setose linear depression behind the eyes ( Fig. 3A ), width across eyes 0.18 mm ; mentum and prementum obscured; antennomeres III–XI, length 0.29 mm , III–IX length 0.16 mm , X–XI length 0.13 mm . PRONOTUM. 0.13 mm long, 0.23 mm wide, sparsely pubescent with ± nine asymmetrically placed foveae in basal half, lateral margins evenly rounded to shallow concave sinuations before rectangular hind angles, strongly bordered, the borders not continuing along the posterior margin, medial emargination opposite the scutellum angulate ( Fig. 113B ). ELYTRA. 0.39 mm long, 0.30 mm wide, pubescent, shallowly foveolate. MESOVENTRITE. Medial extension of collar broadened posteriorly almost reaching lateral margins of midkeel; mid-keel sub parallel-sided, hind angles not reaching mesocoxae raised to blunt termination before keel; keel narrow with ± four setae, tapering to a point at the base of the mesocoxae; mesoventral lateral margins serrate in posterior half; humeri toothed ( Fig. 113C ). METAVENTRITE. Sparsely pubescent, length 0.13 mm , disc simple, width across spines 0.08 mm ; posterior margin of mesocoxae serrate. WINGS. Macropterous. GENITALIA. Male aedeagus small, pointed when viewed dorsally. Females not known. Remarks The only species of Cissidium in this group from the Philippines .