Cissidium nishikawai Sawada, 2008

Darby, Michael, 2020, A revision of Cissidium Motschulsky (Coleoptera: Ptiliidae) with seventy seven new species, European Journal of Taxonomy 622, pp. 1-188 : 152

Cissidium nishikawai Sawada, 2008

Fig. 96

Material examined

Paratype

JAPAN • 1 ♀; Gaji-rindo, Kunigami-son , Okinawa Pref.; 21 Oct. 1987; Y. Nioshikawa leg.; YS. The specimen is thickly covered with glue and the details are difficult to make out, no attempt was made to turn it over to inspect the underside. Figure 96C is copied from Sawada (2008).

Supplementary description

The following description amplifies the type description of Sawada (2008) to conform with the entries in the present paper.

SIZE. Habitus ( Fig. 96A ), length 0.69 mm.

COLOUR. Reddish brown, antennae, legs and pubescence dusky yellow.

HEAD. With a transverse depression behind the eyes, width across eyes 0.18 mm; antennomeres III–XI, length 0.29 mm terminally globular.

PRONOTUM. Length 0.19 mm, width 0.28 mm, shallowly foveolate and sparsely pubescent; side margins rounded to rectangular hind angles, bordered, the border continuing along the entire posterior margin including the emargination in front of the scutellum ( Fig. 96B ).

ELYTRA. Length 0.45 mm, width 0.41 mm, pubescent.

MESOVENTRITE. Lateral margins serrate; humeri toothed ( Fig. 96C ).

METAVENTRITE. Mesocoxal posterior borders serrate

GENITALIA. Female spermatheca globular. Males not known.

Remarks

This is the only Japanese species in this group apart from C. shibatai Sabada, 2008 . It may be distinguished from that species by the much wider pronotal base.

Figures

Fig. 96. Cissidium nishikawai Sawada, 2008. A. Habitus. B. Pronotum, × 600. C. Meso- and metaventrite from Sawada (2008).