Cissidium itoi 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 : 81-82

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.3795582
persistent identifier	https://treatment.plazi.org/id/039987A1-3842-FF9F-2B39-FEE5FB03FCBD
treatment provided by	Valdenar
scientific name	Cissidium itoi Sawada, 2008
status

Treatment

Cissidium itoi Sawada, 2008 View in CoL

Fig. 51 View Fig

Material examined

Paratypes

JAPAN • 17 ex.; Shikoku, Ashizuri, Cape Kohchi Pref.; 1–3 May 1997; T. Ito leg.; YS, BMNH.

Supplementary description

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

SIZE. Habitus ( Fig. 51A View Fig ), length 0.66 mm.

COLOUR. Dark brown, antennae, legs and pubescence paler.

HEAD. With a row of indistinctly formed foveolae between the eyes; width across eyes 0.20 mm; antennomeres III–XI, length 0.27 mm, terminal antennomeres globular.

PRONOTUM. Length 0.21 mm, width 0.29 mm, densely foveolate and pubescent throughout; side margins rounded to slightly concave before acute hind angles, border shallowly crenulate, not continued along the hind margin which has a shallow sinuous emargination in front of the scutellum ( Fig. 51B View Fig ).

ELYTRA. Length 0.41 mm, width 0.32 mm, pubescent but without foveolae.

MESOVENTRITE. Median extension of collar short; mid-keel and keel united without extensions to the anterior mesocoxal borders, strongly setose and sculpted, terminating in a rounded point between the mesocoxae; humeri shallowly toothed; mesoventral lateral borders smoothly rounded without serrations ( Fig. 51C View Fig ).

METAVENTRITE. Sparsely pubescent, length 0.11 mm, width across spines 0.10 mm, disc foveolate medially; mesocoxal posterior borders without serrations

GENITALIA. Male aedeagus pointed, not beak-shaped in profile; female spermatheca elongate as Fig. 6D View Fig .

Remarks

This is one of three species in this group from Japan and differs from C. latum Sawada, 2008 in being narrower and from C. nomurai Sawada, 2008 in the form of the female spermatheca.