Key to the species of Suipinima (modified and translated from Martins & Galileo, 2004)

1. Prothorax longer than wide with lateral gibbosities laterally.................................................... 2

- Prothorax wider than long with rounded sides.............................................................. 4

2 (1) Scape and antennomere III blackened; light sutural concolorous with elytral integument. Bolivia .................................................................................................... S. una Martins & Galileo, 1994

- Scape with blackened area restricted to dorsal face; antennomere III orange; suture margin lighter than remaining elytral integument............................................................................................... 3

3 (2) Pronotum with yellowish tubercles; sides of pronotum without white strip of pubescence; dark brown elytra at basal third and light brown in remaining two thirds. Brazil (Ceará, Bahia).............................. S. flavumtuberculata sp. nov.

- Pronotum without tubercles, the sides of pronotum with white strip of pubescence and elytra totally black........................................................................................ S. pitanga Martins & Galileo, 1994

4 (1). Prothorax orange, with transverse blackened band at base; center of pronotum uniformly covered with yellowish and long pubescence; antennomeres III, VIII and IX orange; antennomeres X and XI black; upper eyes lobes contiguous. Ecuador ......................................................................... S. eccentrica (Galileo & Martins, 1992)

- Prothorax black; base of pronotum without black transversal band, sides with longitudinal strips of yellow pubescence; antennomeres III and VIII to XI black; upper eye lobes distinctly separated, not contiguous............................... 5

5 (4). Scape, pedicel and antennomere III black; metepisternum covered by white and dense pubescence; tibiae and tarsomeres black. Brazil (Rondônia), Bolivia ............................................ S. suturalis Martins & Galileo, 1994

- Scape yellowish with black apex; pedicel and antennomere III black with basal yellow ring; metepisternum covered by yellow and sparse pubescence; tibiae and tarsomeres brownish. Bolivia ................... S. marginalis Martins & Galileo, 1994