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 franzi sp. nov. urn:lsid:zoobank.org:act: D97EEE20-437A-4308-876A-8E26775C 1907 Fig. 9 Etymology Johnson ms name, after the collector H. Franz. Material examined Holotype MADAGASCAR • ♂ ; Perinet, forest of transition ; 928 m a.s.l. ; 15 Apr. 1969 ; H. Franz leg.; MMUE . Paratype MADAGASCAR • ♂ ; same collection data as for holotype; MMUE . Description SIZE. Habitus ( Fig. 9A ), length 0.66 mm . COLOUR. Dark brown, appearing polished, antennomeres and legs yellow. HEAD. Without a clear transverse depression behind the eyes, width across eyes 0.21 mm ; antennomeres III–XI length 0.34 mm , III–IX length 0.19 mm , X–XI length 0.15 mm globular; mentum as Fig. 4A. PRONOTUM. Length 0.17 mm , width 0.25 mm , glabrous with six basal foveae the two inner pairs united to give the appearance of two large foveae, the outer foveae detached, small; lateral margins rounded almost parallel in basal third, narrowly bordered to rectangular hind angles, not continued along the posterior border which has a sinuous emargination before the scutellum ( Fig. 9B ). ELYTRA. Length 0.45 mm , width 0.35 mm , glabrous. MESOVENTRITE. Collar with broad medial extension lacking reticulation; mid-keel very short, posterior corners with flat carinae to mesocoxal anterior borders with a short, ridged top at junction with keel; keel short, broad with ± five setae, terminating at interruption of mesocoxal border; mesoventral lateral margins smoothly rounded, serrate; humeri bluntly toothed ( Fig. 9C ). METAVENTRITE. Length 0.16 mm , glabrous, disc plain, width across spines 0.09 mm , spines very short; posterior margins of mesocoxal cavities faintly serrate. Fig. 9. Cissidium franzi sp. nov. A . Habitus. B . Pronotum, × 630. C . Mesoventrite showing median process of collar, mid-keel and keel, × 995. WINGS. Macropterous. GENITALIA. Male aedeagus as Fig. 6 Fa–b. Female spermatheca not known. Remarks The glabrous and strongly foveate pronotum is shared with C. glabratum sp. nov. and C. semicalvum sp. nov. both also from Madagascar , but C. franzi sp. nov. may be distinguished from them by the presence of the two small ancilliary foveae between the large foveae and the pronotal lateral margins.