Key to species of Corimbion

1. Posterior third of the elytra densely pubescent. Guatemala, Honduras, Costa Rica ............. C. martinsi Giesbert, 1998

- Posterior third of the elytra without dense pubescence........................................................ 2

2(1). Antennomeres distinctly bicolorous. Ecuador ................................ C. antennatum Martins & Galileo, 2014

- Antennomeres unicolorous or at most slightly darkened apically................................................ 3

3(2). Elytra with inverted V-shaped yellowish-white band about middle............................................... 4

- Elytra without inverted V-shaped yellowish-white band centrally................................................ 5

4(3). All femora mostly dark reddish brown. Bolivia (Santa Cruz)........... C. ledezmae Santos-Silva, Galileo & Wappes, 1015

- Pro- and mesofemora distinctly lighter than metafemora. Brazil (Bahia)....................... C. balteum Martins, 1970

5(3). Elytra with contrasting bands or maculae on basal half........................................................ 6

- Elytra without contrasting bands or maculae on basal half.................................................... 11

6(5). Antennomere IV about as long as III and V. Venezuela ................................. C. caliginosum Martins, 1970

- Antennomere IV shorter than III and V.................................................................... 7

7(6). Elytra with transverse dark band on posterior half. Brazil (Bahia, Minas Gerais, Espírito Santo, Rio de Janeiro, São Paulo, Paraná).......................................................................... C. vulgare Martins, 1970

- Elytra without transverse dark band on posterior half......................................................... 8

8(7). Elytra with longitudinal dark sutural band from middle to near apex. Venezuela .............. C. supremum Martins, 1970

- Elytra without longitudinal dark sutural band on posterior half.................................................. 9

9(8). Elytra with transverse yellowish-brown band about middle. Guatemala ............................ C. wappesi sp. nov.

- Elytra without light transverse band about middle........................................................... 10

10(9). Elytra mostly dark. Ecuador ...................................... C. mutabile Bezark, Santos-Silva & Galileo, 2016

- Elytra mostly yellowish brown. Bolivia (Santa Cruz)................. C. kuckartzi Santos-Silva, Galileo & Wappes, 2015

11(5). Antennomeres III and IV, apex of femora and entire tibiae blackish. Colombia (Sucre), Bolivia (Santa Cruz)........................................................................................ C. nigroapicatum Martins, 1970

- Antennomeres III and IV, entire femora and tibiae orangish. Colombia, Venezuela, Brazil (Roraima)................................................................................................ C. terminatum Martins, 1970