The ultimate instar larvae or exuviae of the following spp. and sspp. are described and illustrated: Hetaetina medinai Racenis, Euthore f. fasciata (Hagen), E. f. plagiata Selys, E. f. fastigiata (Selys), Microstigma rotundatum Selys, Palaemnema dementia Selys, Epipleoneurametallica Racenis, Neoneurafulvicollis Selys, Acanthagtion imerieme De Marmels, A vidua Selys, Argia adamsi Calvert, Cyanallagma latetale (Selys), and C tamaense De Marmels. A key to the known larvae of Polythoridae found in Venezuela is included. The larva of each sp./ssp. is diagnosed against similar larvae of other taxa, and notes on the larval habitat are added.
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