Unithema, Desutter-Grandcolas, 1991

Desutter-Grandcolas, Laure & Faberon, Léo, 2020, Phalangopsidae crickets (Orthoptera, Grylloidea) from the Mitaraka biological survey, French Guiana, Zoosystema 42 (32), pp. 739-797 : 786

Unithema sp.

MATERIAL FROM THE MITARAKA. — French Guiana • 1 juvenile ♂; Monts Tumuc-Humac, Massif du Mitaraka vers sommet en Cloche; entre 54.4541 O 2.2349 N et 54.4646 O 2.2329 N; alt. entre 370 m et 470 m; 23.II.-10.III.2015; F. Legendre & S. Hugel leg.; de nuit, fn. SH499; MNHN. Specimen in bad condition (fungi) .

REMARK

Unithema is the only strogulomorphine genus recorded today in French Guiana. As the juvenile male at hand present very short FWs, it could belong to this genus. The specimen has a very dark coloration: its pronotum is almost entirely black, without a yellow band along posterior margin, and with only a very thin longitudinal line on DD; its palpi, abdomen and cerci are entirely black. It shows also particular details of coloration, such as alternate black and ivory lines on scape anterior side, a yellow band on posterior margin of metanotum (as in Unithema xanthochosmea Desutter-Grandcolas, 1991 ), black antennae with yellow articles widely spaced on flagellum, and a thin ivory line under median ocellus, bordered by two yellowish lines along antennal pits. This specimen could belong to a new species.