Some Libellulidae larvae from the Yungas Forest, Argentina: Macrothemis hahneli Ris, Brechmorhoga nubecula (Rambur) and Dasythemis mincki clara Ris (Anisoptera)

A first description of the larva of M. hahneli is provided. The larva of B. nubecula, previously described based on a single specimen of doubtful identity, is here redescribed based on bona fide specimens belonging to that sp. The larva of D. mincki clara is found to agree overall with that of D. m. mincki, differing only on some minor details probably due to geographic variation.