Corynomalus Chevrolat in Dejean, 1836: 439.

Type species: Corynomalus tarsatus Erichson, 1847 .

A Neotropical genus with 49 species distributed from southern México to South America . Strohecker (1980) made a generic revision. A species from Costa Rica seems to feed on lichens. Tomaszewska (2005) provided a detailed generic description.

According to Bousquet (2004) the name Corynomalus was first validated by Chevrolat (1836: 439) in the fifth release of Dejean's second edition of his catalogue and has priority over the widely used name Amphix Laporte (1840) . Based on this argument, we include the single Mexican species in the genus Corynomalus instead of Amphix .

15. C. perforatus Gerstaecker, 1857 . Figs. 5, 21.

Corynomalus perforatus Gerstaecker, 1857: 238 .

Corynomalus dentatus Gorham, 1889: 117 (nec Gerstaecker). Amphix perforatus: Blackwelder 1945: 437; Strohecker 1953: 88; Strohecker 1980: 25. Amphix dentatus: Blackwelder 1945: 437 (in part).

Type locality: Guyane: Cayenne.

Type material: lectotype in MNHUB.

Distribution: México: CHIS, OAX *, VER. Belize, Nicaragua, Costa Rica, Panama, Colombia, Venezuela, Guyane.

This species has been collected from 40 to 750 meters above sea level in July and August.