Holynski, R. B. 1993. Obenberger, J. 1935. W. Junk, Berlin, pp. Schaefer, L. 1946. Schaefer, L. 1953.
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, or distinctly greater than prothoracic width.