Cissidium losbanos, Darby, 2020

Darby, Michael, 2020, A revision of Cissidium Motschulsky (Coleoptera: Ptiliidae) with seventy seven new species, European Journal of Taxonomy 622, pp. 1-188 : 150-152

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.3795680
persistent identifier	https://treatment.plazi.org/id/A843A921-A7D6-460C-8D0E-143329B50207
taxon LSID	lsid:zoobank.org:act:A843A921-A7D6-460C-8D0E-143329B50207
treatment provided by	Valdenar
scientific name	Cissidium losbanos
status	sp. nov.

Treatment

Cissidium losbanos View in CoL sp. nov.

urn:lsid:zoobank.org:act:A843A921-A7D6-460C-8D0E-143329B50207

Figs 4D View Fig , 95 View Fig

Etymology

Named after the Mount Makiling National Reserve, in the Municipality of Los Banos, in Laguna Province of the Philippines, where the insects were collected. Noun in apposition.

Material examined

Holotype

PHILIPPINES • ♀; Los Banos , Makiling Forest; 27–28 Sep. 1981; in rotten wood; M. Darby leg.; BMNH.

Paratypes

PHILIPPINES • 7 ex.; same collection data as for holotype; two mounted verso; BMNH.

Description

SIZE. Habitus ( Fig. 95A View Fig ), length 0.94 mm.

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

HEAD. With a sharply defined transverse depression behind the eyes, width across eyes 0.27 mm; antennomeres III–XI length 0.46 mm, III–IX length 0.30 mm, X–XI length 0.16 mm globular; mentum and prementum with distinctive sculpturing ( Fig. 4D View Fig ).

PRONOTUM. Length 0.28 mm, width 0.44 mm, densely pubescent, without foveolae and foveae; lateral margins shallowly angled, bordered, the borders extending narrowly along the entire posterior margin, hind angles sharp, acute, posterior border without emargination opposite the scutellum ( Fig. 95B View Fig ).

ELYTRA. Length 0.58 mm, width 0.49 mm, pubescent, foveolate contrasting with the pronotum. MESOVENTRITE. Collar with tapering medial extension onto mid-keel; mid-keel and keel fused without projecting anterior and posterior corners, strongly and coarsely sculptured, tapering to a point posterior to the mid-point of the mesocoxae; mesoventral lateral margins evenly rounded in posterior half without serrations; humeri a clear extension of the collar, narrow, barely toothed ( Fig. 95C View Fig ).

METAVENTRITE. Length 0.18 mm, sparsely pubescent, disc simple, width across spines 0.14 mm; posterior margins of mesocoxal borders without serrations.

WINGS. Macropterous.

GENITALIA. Female spermatheca globular. Male aedeagus as Fig. 6 View Fig Ia–b.

Remarks

The only species of Cissidium in this group from the Philippines.