Pellaea Stål, 1872
The genus can be recognized by having the oval body, slightly convex; the pronotum with punctations in transversal, vermiform lines, and separated by smooth and callosity regions; the first antennal segment not reaching the apex of the head; the clypeus is nearly equal or slightly longer than the mandibular plates; and the abdominal medial tubercle not reaching the procoxae, sometimes reduced (Brailovsky 1987; Rolston & McDonald 1980).