Of the many Zygopteran genera that occur in the Neotropics, only five (Hetaerina, Archilestes, Lestes, Argia, and Ischnura) are represented north of 40°N in North America, and only three of these (Hetaerina, Archilestes, and Argia) probably had a tropical origin. In the two genera of Lestidae (Archilestes and Lestes) the life history of temperate-zone populations…
This revision of the subgenus Marmaraeschna includes the description of three new species: Aeshna (M.) fissifrons, A. (M.) obscura and A. (M.) brevicercia, as well as redescriptions of the previously known species, including the first description of the male of A. (M.) pallipes, a key for males and females and an updated distribution for each…