Dietta

Peck, Stewart B., Gnaspini, Pedro & Newton, Alfred F., 2020, Updated catalog and generic keys of the Leiodidae (Insecta: Coleoptera) of the Neotropical region (“ Latin America ”: Mexico, the West Indies, and Central and South America), Zootaxa 4741 (1), pp. 1-114 : 73

Key to Subgenera of Dietta of Latin America (modified from Peck & Cook, 2003)

1a Clypeus lightly sclerotized, pale; procoxal cavities externally widely open; widely distributed in South America.................................................................................................. subgenus Dietta

1b Clypeus heavily sclerotized, dark; procoxal cavities externally narrowly closed; distributed from Mexico to Panama and adja- cent northwestern South America to western Ecuador......................................... subgenus Mesodietta