| A study of the genus Leucosia Weber, 1795, revealed subdivisions within the genus. A new genus, Euclosia, is established for L. crosnieri Chen, 1989, L. obtusifrons de Haan, 1841, L. rotundifrons Chopra, 1934, and L. unidentata de Haan, 1841 and five new species: E. concinna, E. exquisita, E. nitida, E. scitula, and E. tornatilia. They differ from all other species heretofore assigned to Leucosia in having anterior margin of thoracic sinus puckered, loop-shaped. The species are described or redescribed and illustrated, extended synonymies, geographical distribution and habitat are given, and a key for their identification is provided. |
