Study of the variation of the male genitalia species of the tribe phanaeini (Scarabaeidae: Scarabaeinae) en Colombia

In this paper we examined the variation of male genitalia Phanaeini Tribe, a dung beetles group with ecological importance by nutrient recycling process carried out. We reviewed 122 specimens of 55 species, 25 specimens of countries such as Costa Rica, Brazil, Peru, Bolivia and Venezuela. We present the description of the variation of genital segment, aedeagus, internal sac, sclerite basal, sclerite medial, sclerite elongate and sclerite plate of the species of the six genera of Phanaeini tribe present in Colombian. The results of this work show that the male genitalia of species of the tribe Phanaeini are heterogeneous, but unique to each species being of taxonomic value; the diversification in morphology of the genitalia is sufficiently wide, variation represented in the multiple forms of the sclerites in the internal sac.