Key to Bolivian species of Pseudoxycheila

(modified after Cassola, 1997 and Pearson et al., 1999) [P. i n c a with only two (unconfirmed) Bolivian records and specimens were not available for our study].

1. Elytra relatively long and flattened, head and pronotum proportionally small, tip of male aedeagus strongly angled downwards................................................................................ P. quechua Cassola, 1997

- Elytra relatively short and domed, head and pronotum appear large.............................................. 2

2. Orange spot on elytra elongated, longer than elytra width........................................ P. tucumana n. sp.

- Orange spot on elytra rounded, shorter than elytra width....................................................... 3

3. Elytra relatively narrow, pronotum blackish and not velvet-like, tip of male aedeagus slightly bent downward................................................................................................. P. inca Cassola, 1997

- Elytra relatively wide; pronotum with velvet-like blue reflections, tip of male aedeagus with nearly straight tip.............................................................................................. P. andina Cassola, 1997