Cissidium franzi, Darby, 2020

Darby, Michael, 2020, A revision of Cissidium Motschulsky (Coleoptera: Ptiliidae) with seventy seven new species, European Journal of Taxonomy 622, pp. 1-188 : 13-15

publication ID	https://doi.org/ 10.5852/ejt.2020.622
publication LSID	lsid:zoobank.org:pub:9CD3B2CD-F072-4994-8CA9-24145D343401
DOI	https://doi.org/10.5281/zenodo.3795534
persistent identifier	https://treatment.plazi.org/id/D97EEE20-437A-4308-876A-8E26775C1907
taxon LSID	lsid:zoobank.org:act:D97EEE20-437A-4308-876A-8E26775C1907
treatment provided by	Valdenar
scientific name	Cissidium franzi
status	sp. nov.

Treatment

Cissidium franzi View in CoL sp. nov.

urn:lsid:zoobank.org:act:D97EEE20-437A-4308-876A-8E26775C1907

Fig. 9 View Fig

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 View Fig ), 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. View Fig

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 View Fig ).

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 View Fig ).

METAVENTRITE. Length 0.16 mm, glabrous, disc plain, width across spines 0.09 mm, spines very short; posterior margins of mesocoxal cavities faintly serrate.

WINGS. Macropterous.

GENITALIA. Male aedeagus as Fig. 6 View Fig 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.