Contribution à la connaissance des Odonates de Guyane Française: notes sur des larves des genres Orthemis, Diastatops et Elga (Anisoptera: Libellulidae)

The ultimate instar larvae of Orthemis aequilibris Calv. and of O. biolleyi Calv. are described and illustrated for the first time. The penultimate instar of the supposed larva of Diastatops pullata (Burnt.) is described and illustrated. D. pullata is considered again as a valid species. Elga leptostyla Ris has peculiar setae on the occiput.