Oideterus, Thomson, 1858

Galileo, Maria Helena M., Komiya, Ziro & Santos-Silva, Antonio, 2018, Description of a new genus and two new species of Anacolini (Coleoptera, Cerambycidae, Prioninae) from South America, Zootaxa 4500 (2), pp. 281-288 : 283

Key to males of Oideterus

1. Elytral apex just short of attaining abdominal ventrite I apex. Ecuador................................ O. crenatocerus

- Elytral apex surpassing apex of abdominal ventrite I.......................................................... 2

2(1). Outer apex of antennomere IV triangularly projected; elytra surpassing base of abdominal ventrite V. Colombia...... O. birai

- Outer apex of antennomere IV distinctly pectinate; elytra reaching at most the base of abdominal ventrite IV............. 3

3(2). Prosternal process triangularly narrowed at apex. Ecuador, Colombia..................................... O. buquetii

- Prosternal process with rounded apex...................................................................... 4

4(3). Lateral tubercle of prothorax spiniform; outer margin of the elytra slightly, uniformly rounded from base to apex. Ecuador............................................................................................ O. dichotomus

- Lateral tubercle of prothorax triangular; outer margin of the elytra sub parallel-sided at posterior half. Colombia. O. andrarius