Ctenostoma pygmaeum

Ctenostoma pygmaeum is a species of tiger beetle. This species is found in Brazil, where it inhabits the Southern Atlantic Forest.
Adults are brachypterous.

Subspecies

Ctenostoma pygmaeum pygmaeum - pygmy comb-mouthed beetle
Ctenostoma pygmaeum concolor Naviaux, 1998 - '''uniform small comb-mouthed beetle'''