Cissidium triangulum Darby, 2019
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.3795700 |
persistent identifier |
https://treatment.plazi.org/id/039987A1-3897-FF48-2B00-FE3DFCF3FC7E |
treatment provided by |
Valdenar |
scientific name |
Cissidium triangulum Darby, 2019 |
status |
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Cissidium triangulum Darby, 2019 View in CoL
Figs 4E View Fig , 85 View Fig
Material examined
Holotype
MALAYSIA • Sarawak, Mulu ; pitfalls in alluvial forest; Mar. 1978; N.M. Collins leg.; genitalia not dissected; BMNH.
Supplementary description
The following description amplifies the type description of Darby (2019), in particular by adding more details of the meso- and metaventral characters, in order to conform with the entries in the present paper.
SIZE. Habitus ( Fig. 85A View Fig ), length 0.79 mm.
COLOUR. Yellow brown, antennae, legs, and pubescence yellow.
HEAD. Distance across eyes 0.22 mm; antennomeres III–XI, length 0.31 mm; mentum triangular the anterior margin much longer than the basal, stipes also triangular, broadest at base ( Fig. 4E View Fig ).
PRONOTUM. Length 0.19 mm, width 0.28 mm, pubescent, shallowly foveolate; sides rounded then straight before rectangular hind angles, border crenulate, not continuing along posterior margin, median emargination angulate ( Fig. 85B View Fig ).
ELYTRA. Length 0.41 mm, width 0.34 mm, pubescent, the pubescence slightly longer than on the pronotum, shallowly foveolate.
MESOVENTRITE. Median extension of collar parallel-sided, short, mid-keel setose and rugose before keel; keel narrow, tapering to a point at the base of the mesocoxae; mesoventral lateral margins almost straight before turning to meet mesocoxae, then obscured; humeri barely toothed ( Fig. 85C View Fig ).
METAVENTRITE. With scattered pubescence throughout, disc plain, length 0.14 mm, distance across spines 0.08 mm; mesocoxal posterior margins without serrations.
Remarks
The only species of Cissidium from Sarawak in this group.
BMNH |
United Kingdom, London, The Natural History Museum [formerly British Museum (Natural History)] |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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