Key to species of Callisema (adapted from Martins & Galileo 1996)

1. Elytra with integument bicolored, entire lateral declivity lighter than dorsal surface................................ 2

- Elytral integument unicolored............................................................................ 3

2(1). Sides of elytra reddish, including humeri, almost reaching apex; elytral apex obliquely truncate; abdomen, sides of metasternum and femora with coarse, glabrous distinct punctures. Brazil (Mato Grosso, Goiás)..................................................................................................... C. consortium Martins & Galileo, 1990

- Sides of elytra yellowish, not including humeri and reaching distal third; elytral apex rounded; sides of metasternum and femora without contrasting punctures, slightly contrasting on abdomen. Brazil (Minas Gerais, Espírito Santo, São Paulo, Paraná, Santa Catarina), Argentina (Misiones)......................................... C. socium Martins & Galileo, 1990

3(1). Femora mostly reddish-orange with dark apex. Bolivia, Brazil (Rondônia, Maranhão, Ceará, Goiás, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Espírito Santo, São Paulo)............................ C. rufipes Martins & Galileo, 1990

- Femora unicolorus..................................................................................... 4

4(3). Elytral apex rounded. Colombia, Venezuela.................................... C. elongata Galileo & Martins, 1992

- Elytral apex obliquely truncate........................................................................... 5

5(4). Longitudinal band of pubescence on center of the pronotum contrasting in color with that on its sides; pubescence of scutellum distinctly contrasting with that on elytra; pubescence mostly whitish. Peru ............ C. iucaua Martins & Galileo, 1992

- Longitudinal band of pubescence on center of the pronotum not contrasting in color with that on its sides; pubescence of scutellum not contrasting with that on elytra; pubescence mostly orangish-brown. Ecuador ............. C. jirouxi sp. nov.