Gwynne, D. T. and D. C. F. Rentz 1983. Hawkeswood, T. J. and M. Peterson 1982. Holynski, R. B. 1993. Obenberger, J. 1926. W. Junk, Berlin, pp.
Body strongly convex.
Sides of body not evenly curved. Upper surfaces of body glabrous or subglabrous. Upper surfaces of body without deep foveae. Prothorax, metathorax and-or abdomen without extrusible glands. Head width just behind eyes not distinctly greater than prothoracic width.