Cissidium subfoveolatum, Darby, Michael, 2019

Darby, Michael, 2019, New Ptiliidae (Coleoptera) from Sarawak in the spirit collection of the Natural History Museum, London, European Journal of Taxonomy 512, pp. 1-50 : 18

publication ID	https://doi.org/ 10.5852/ejt.2019.512
publication LSID	urn:lsid:zoobank.org:pub:8DF89CFD-A549-4C69-8FBC-90EC8DEA9A66
DOI	https://doi.org/10.5281/zenodo.5941282
persistent identifier	https://treatment.plazi.org/id/A0D282BF-B3E0-45D4-8FC2-814F8202B9F7
taxon LSID	lsid:zoobank.org:act:A0D282BF-B3E0-45D4-8FC2-814F8202B9F7
treatment provided by	Plazi
scientific name	Cissidium subfoveolatum
status	sp. nov.

Treatment

Cissidium subfoveolatum View in CoL sp. nov.

urn:lsid:zoobank.org:act:A0D282BF-B3E0-45D4-8FC2-814F8202B9F7

Figs 6D View Fig , 7E View Fig , 8E View Fig

Diagnosis

The pronotal foveae distinguish this species from all others on Sarawak. From C. foveolatum Johnson, 1982 from New Zealand, which has similar large foveae on the pronotum, it may be distinguished by the more sinuate margins of the pronotum, the lack of a deep medial fovea on the forehead between the eyes and the wider keel between the mesocoxae.

Etymology

Refers to the large foveae on the pronotum.

Type material

Holotype

MALAYSIA-BORNEO • ♀ (mounted ventral side uppermost); Sarawak, 4 th division, Gunung Mulu National Park ; May–Aug. 1978; P.M. Hammond and J.E. Marshall leg., BM 1978-49 ; comp 5, alluvial forest litter; BMNH.

Description

SIZE. Habitus ( Fig. 6D View Fig ), length 0.89 mm.

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

HEAD. Distance across eyes 0.23 mm; antennomeres III–XI, length 0.39 mm; mentum parallel sided the lateral margins with slight insinuation, submentum with 4 long setae.

PRONOTUM. Length 0.22 mm, width 0.32 mm, with scattered pubescence and a row of foveae along the posterior margin, the four medial ones tending to form two large ones, side margins sinuate before the acute hind angles ( Fig. 7E View Fig ).

ELYTRA. Length 0.49 mm, width 0.55 mm, pubescent, shallowly foveolate, sides evenly rounded, broadest just before middle. Mesoventrum without pubescence, humeri with sharply projecting angles, lateral margins almost straight before turning to meet mesocoxae, each with ¾ serrations, keel parallel sided in posterior half widening slightly between the mesocoxae ( Fig. 8E View Fig ).

VENTRUM. Metaventrum with scattered pubescence, posterior margin with two sharp points at corners, metacoxae separated by ¼ width of the sclerite.

FENALE GENITALIA. Spermatheca globular.