Key to species of Pelmatus OPITZ
1 Elytral basal 1/3 rd reddish-testaceous, distal 2/3 rd blue-black (Chile).................................... ........................................................................... Pelmatus bicolor (SOLERVICENS) (Fig. 94)
- Elytral color mixture of testaceous and brown (Chile).......................................................... .............................................................................. Pelmatus barri (SOLERVICENS) (Fig. 93)