THE TRIBE OPISTHIINI (COLEOPTERA, CARABIDAE) - DESCRIPTION OF THE LARVAE, NOTE ON HABITAT, AND BRIEF DISCUSSION ON ITS RELATIONSHIPS

All instar larvae of Opisthius richardsoni Kirby, 1837 and the first and second instar larvae of Paropisthius indicus (Chaudoir, 1863) are described and the character states of the tribe Opisthiini are highlighted. The two species differ mainly by the shape of the nasale, length of the antennae, shape of the seta TE10 on tergites VII and VIII, and the presence or absence of secondary setae on the tarsi. The adults of O. richardsoni are strictly riparian, occurring mainly on sandy or clayish-sandy banks of rivers. Those of P. indicus occur at high elevations (3,000-3,900 m) on well-drained substrate in open habitats, away from water. The larvae of both species can jump vigorously when disturbed. The analysis of the character states of the known larvae of Nebriitae does not support the accepted classification of the group based on the character states of the adults.