Abstract

Libelluloidea is the second most diverse and speciose group of Odonata just behind the Coenagrionoidea. It includes almost 1,500 species in 195 genera, of which approximately 450 species and 58 genera are represented in the Neotropical region. The Libelluloidea have a cosmopolitan distribution and are present in all kind of environments. The monophyly of the superfamily is strongly supported but inner arrangement is still unresolved. In this work, four families are acknowledged: Synthemistidae (one genus in the Neotropical region: Gomphomacromia); Macromiidae (a broad genus not considered geneally neotropical but present in northern Mexico: Macromia); Corduliidae (sensu stricto with six genera in the Neotropical region, but including also here for practical reasons the probable closely related incertae sedisLauromacromia and Neocordulia), and Libellulidae (48 genera in the Neotropical region). Except for Libellulidae, with 40 genera with known larvae, all remaining genera larva are known. Here, we present a key to the families and genera of ultimate stadium larvae of Libelluloidea.

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