Literature data and the evidence from some collections are compiled, and information on flight periods, ecology and ethology of some spp. is provided. So far 45 spp. were evidenced; the occurrence of Aeshna bonariensis is uncertain, and the records of some other spp., mostly from the northern regions, are in need of confirmation. The larval stage of only 10 spp. has been described, but in some cases the species identification is lacking. The complete regional bibliography is appended.