Four species of Chaetocnema Stephens, 1831 new to India (Coleoptera, Chrysomelidae, Galerucinae, Alticini)

Occurrence of four species of the flea beetle genus Chaetocnema Stephens viz. C. (Chaetocnema) kingpinensis Ruan, Konstantinov & Yang, C. (C.) yunnanica Heikertinger, C. (Udorpes) angustifrons Ruan, Konstantinov & Yang and C. (U.) reteimpunctata Ruan, Konstantinov & Yang are newly reported from India. Male of C. reteimpunctata is firstly described. Brachiaria mutica (Forssk.) Stapf (Poaceae) is newly recorded as the host plant of C. angustifrons.