Cissidium okuense Grebennikov, 2009

Darby, Michael, 2020, A revision of Cissidium Motschulsky (Coleoptera: Ptiliidae) with seventy seven new species, European Journal of Taxonomy 622, pp. 1-188 : 60-61

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.3795550

persistent identifier

https://treatment.plazi.org/id/039987A1-3829-FFF2-2B7D-FBFFFD03F9AD

treatment provided by

Valdenar

scientific name

Cissidium okuense Grebennikov, 2009
status

 

Cissidium okuense Grebennikov, 2009 View in CoL

Fig. 38 View Fig

Material examined

SEMs of a paratype and photographs of a slide of the holotype

CAMEROON • North West province , Mt and Lake Oku; 6°12.218′ N, 010°27.596′ E; 2200 m a.s.l.; 6 May 2006; V. Grebennikov coll. GoogleMaps

Supplementary description

The following amplifies the description of Grebennikov (2009) to conform with the other entries in this paper. It is based on the paratype illustrated in 20 SEM images and a single photograph of a slide given to the author by Grebennikov. This specimen was subsequently destroyed in the SEM, but was also used as the basis for Grebennikov’s short textual description.

SIZE. Habitus ( Fig. 38A View Fig ), length 1.03 mm.

COLOUR. Yellow brown.

HEAD. With a shallow median depression between the eyes; width across eyes 0.21 mm; antennomeres III–XI length 0.39 mm, III–IX length 0.20 mm, X–XI length 0.19 mm; mentum as Fig. 4A. View Fig

PRONOTUM. Length 0.21 mm, width 0.30 mm, sparsely pubescent, without foveolae but with a row of ± ten foveae along the posterior margin in two groups of five, the outermost two in each group smaller than the others; sides with rounded medial angles, straight to obtuse anterior angles, almost parallelsided to hind angles, bordered, the border not continuing along the posterior margin which has a sinuous emargination opposite the scutellum ( Fig. 38B View Fig ).

ELYTRA. Length 0.58 mm, width 0.42 mm, sparsely pubescent and foveolate contrasting with the pronotum.

MESOVENTRITE. Collar with a short, strongly tapering median extension widening posteriorly; mid-keel wide, parallel-sided, the posterior angles with narrow carinae to the mesocoxal anterior borders; keel with a single medial seta, slightly sinuate before termination at interruption point of the mesocoxal borders; mesoventral lateral margins serrate posteriorly; humeri toothed ( Fig. 38C View Fig fore-shortened by camera position)

METAVENTRITE. Glabrous, length 0.21 mm, disc simple, width across spines 0.12 mm; mesocoxal posterior borders serrate.

WINGS. Apterous.

GENITALIA. Female spermatheca globular.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Ptiliidae

Genus

Cissidium

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