Cissidium tigrum Darby, 2015

Darby, Michael, 2020, A revision of Cissidium Motschulsky (Coleoptera: Ptiliidae) with seventy seven new species, European Journal of Taxonomy 622, pp. 1-188 : 168-169

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.3795726

persistent identifier

https://treatment.plazi.org/id/039987A1-38B5-FF66-2B2C-FCD9FED0FEE3

treatment provided by

Valdenar

scientific name

Cissidium tigrum Darby, 2015
status

 

Cissidium tigrum Darby, 2015 View in CoL

Figs 2I View Fig , 4B View Fig , 5D View Fig , 6I View Fig , 106 View Fig

Material examined

Holotype

BOLIVIA • ♂; cochabamba Dep., Cristal Mayu River valley ca 20 km W of Villa Tunari; 17°00′55″ S, 65°37′48″ W; 550 m a.s.l.; 24 Nov. 2013; sifting litter; Winkler app. extr.; P. Baňař leg.; UASC.

GoogleMaps

Paratype GoogleMaps

BOLIVIA • 1 ♂; same collection data as for holotype; MMUC.

Supplementary description

The following description amplifies the type description of Darby (2015), by adding more details of the meso- and metaventral characters, in order to conform with the entries in the present paper.

SIZE. Habitus ( Fig. 106A View Fig ), length 0.63 mm.

COLOUR. Colour light brown, antennae and legs dusky yellow.

HEAD. Antennomeres III–XI 0.38 mm long, III–IX 17 mm long, X–XI 21 mm long ( Fig. 2I View Fig ); distance across eyes 0.21 mm; mentum and submentum ( Fig. 4B View Fig ).

PRONOTUM. 0.25 mm wide, 0.16 mm long, sparsely pubescent; sharply angled in anterior half then concave to rectangular hind corners and slightly convex to obtuse anterior corners, bordered, the border not continuing along the posterior margin, emargination in front of scutellum well marked ( Fig. 106B View Fig ).

ELYTRA. 0.39 mm long, 0.32 mm wide, area around scutellum more closely foveolate.

MESOVENTRITE. Medial extension of collar small, short, parallel-sided; mid-collar widest basally tapering strongly to base of keel with two small medial points not reaching mesocoxal anterior borders as carinae; keel parallel-sided with ± three setae, bluntly terminating between the mesocoxae ( Fig. 5D View Fig ); mesoventral lateral margins effaced; humeri large, toothed with a long, strongly sloping posterior margin ( Fig. 106C View Fig ).

METAVENTRITE. Length 0.13 mm, disc simple, width across spines 0.10 mm, spines short.

Remarks

Distinguished from all other species of Cissidium in this paper by the shape of the male antennomere XI ( Fig. 2I View Fig ).

UASC

Museo de Historia Natural "Noel Kempff Mercado"

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Ptiliidae

Genus

Cissidium

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF