Genus CALX Christiansen, 1958

Calx Christiansen, 1958: 532 .

Type species. Entomobrya (Drepanura) sabulicola Mills, 1931 .

One species recorded in Vietnam, and some unidentified specimens from Quảng Bình (Đồng Hới) (EC: Nguyễn T. T. & Nguyễn T. T.A. 2001b).