Cissidium nomurai 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 : 91-92

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.3795592
persistent identifier	https://treatment.plazi.org/id/039987A1-3848-FF95-2B19-FDFAFC88FA06
treatment provided by	Valdenar
scientific name	Cissidium nomurai Sawada, 2008
status

Treatment

Cissidium nomurai Sawada, 2008 View in CoL

Fig. 58 View Fig

Material examined

Paratypes

JAPAN • 2 ex.; Kyusyu, Mt Tsubakiyama, Hatayama Town , Saga; 16 Jun. 1990; S. Nomura leg.; YS • 1 ex.; Kyusyu, Shiratani, Yakushima Is. , Kagoshima Pref.; 15 May 1987; S. Nomura leg.; BMNH • 1 ex.; Kyusyu, Miike , Miyazaki Pref.; 8 May 1985; S. Nomura leg.; YS • 3 ex.; Kyusyu, Mt. Ichihusa , Kumamoto Pref.; 13 May 1985; S. Nomura leg.; BMNH • 1 ex.; Kyusyu , Okinawa, Ryukyu, Gaji rindô ,

NE of Mt Terukubi; 290 m a.s.l.; 21.x.1987; Y. Nishikawa leg.; YS • + 20 further ex. from various locations in Japan; YS.

Supplementary description

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

SIZE. Habitus ( Fig. 58A View Fig ), length 0.55 mm.

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

HEAD. With a transverse row of indistinctly formed foveolae between the eyes; width across the eyes 0.16 mm.

PRONOTUM. Length 0.17 mm, width 0.24 mm, densely pubescent and distinctly foveolate throughout; side margins rounded to concave before rectangular hind angles, narrowly bordered, the border continuing for a short distance along the side of the posterior margin which is with an almost imperceptible emargination opposite the scutellum ( Fig. 58B View Fig ).

ELYTRA. Length 0.34 mm, width 0.27 mm, pubescent, more widely distributed than pronotum shallowly foveolate contrasting with the pronotum.

MESOVENTRITE. Median extension of collar parallel sided; mid-keel widest anteriorly tapering posteriorly to junction with keel; keel setose and strongly sculpted, terminating below the mid-point of the mesocoxae; mesoventral lateral margins curved strongly posteriorly; humeri toothed ( Fig. 58C View Fig ).

METAVENTRITE. Foveolate on disc which is slightly depressed, length 0.11 mm, distance across spines 0.09 mm; mesocoxal posterior borders without serrations.

GENITALIA. Male aedeagus as Fig. 6 View Fig Fa–b, but beak not so strongly bent. Female spermatheca turbinate.

Remarks

This is one of three species in this group from Japan and differs from C. latum in being narrower and from C. itoi in the form of the female spermatheca.