Genus Rhomeocalpsua Li, Tomaszewska & Cai, gen. nov.

Type species. Rhomeocalpsua torosa sp. nov.

Etymology. The generic name is an anagram of Holoparamecus, a genus in Endomychidae: Merophysiinae . The name is feminine in gender.

Diagnosis. Body relatively elongate. Head with antennal sockets visible from above (Fig. 5C). Antennae composed of nine antennomeres, with club built of three antennomeres; antennomere 7 strongly asymmetrical; antennomere 8 strongly enlarged (Figs 4C, D, 5F). Apical labial palpomeres apparently enlarged (Fig.4B). Prothorax posteriorly constricted; pronotal disc without pits, sulci or carinae (Fig. 3A). Mesocoxal cavities broadly closed (Fig. 4E). Mesotrochantins concealed (Fig. 4E). Femora with deep and long grooves along inner side (Fig. 4E, F). Tarsi simple, 3-3-3 (Fig. 4H, I).