Cissidium elongatum 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 : 109-111

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.3795670

persistent identifier

https://treatment.plazi.org/id/039987A1-387E-FFA0-2B0A-F98CFD09FD98

treatment provided by

Valdenar

scientific name

Cissidium elongatum Sawada, 2008
status

 

Cissidium elongatum Sawada, 2008 View in CoL

Fig. 69 View Fig

Material examined

Paratypes

JAPAN • 5 ex.; Mt Ichifusa , Kumamoto Pref.; 13 May 1985; S. Nomura leg.; YS • 1 ♂; Kawakami-mura , Nara Pref.; 29 Jan. 1995; K. Ikeuchi leg.; BMNH 1 ♂; Mt Kumosou , Tokushima Pref.; 18 Aug. 1988; M. Sakai leg.; YS 1 ♂; Nakanoshima Is. Tokara Isls. , Kagoshima Pref.; 2 May 1987; S. Nomura leg.; BMNH 5 ♂♂; Hatsuno, Amami-Oshima Is. , Kagoshima Pref.; 13 Oct. 1988; Y. Nishikawa leg.; YS, BMNH 1 ♂; Haneji, Mt. Tanodake , Okinawa Pref.; 25 Oct. 1987; Y. Nishikawa leg.; 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. 69A View Fig ), length 0.72 mm.

COLOUR. Reddish brown to light brown, antennae, legs and pubescence dusky yellow. HEAD. With a deep transverse depression behind the eyes, width across eyes 0.21 mm.

PRONOTUM. Length 0.19 mm, width 0.29 mm, pubescent and shallowly foveolate; side margins rounded to obtuse hind angles, narrowly bordered, the border continuing along the posterior margin to the sinuous emargination opposite the scutellum ( Fig. 69B View Fig ).

ELYTRA. Length 0.45 mm, width 0.38 mm, more densely pubescent basally than pronotum, without foveolae.

MESOVENTRITE. Median extension of keel very broad; mid-keel anteriorly same width as collar extension then with concave sides to hind angles not reaching anterior borders of the mesocoxae; keel tapering to point below mid-point of the mesocoxae; mesoventral lateral borders evenly rounded and serrate in posterior half; humeri toothed ( Fig. 69C View Fig ).

METAVENTRITE. Sparsely pubescent; length 0.15 mm; disc simple, distance across spines 0.11 mm; mesocoxal posterior borders serrate.

GENITALIA. Male aedeagus very short as Fig. 6 View Fig Ia–b. Female spermatheca ovoid.

Remarks

The only Japanese species in this group.

BMNH

United Kingdom, London, The Natural History Museum [formerly British Museum (Natural History)]

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Ptiliidae

Genus

Cissidium

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