- Ptomaphagus (Adelops) leo Peck, 1973

Paratypes: 4 [unknown sex]. MEXICO: Nuevo León, Monterrey, Chipinue Mesa, 5400 m, 21–25/VI/1969. Col. S. & J. Peck; forest.

Conservation status: Complete, well-preserved.

- Ptomaphagus newtoni Peck, 19 73

Paratype: 1 [unknown sex]. MEXICO: Oaxaca, Valle Nacional, 30 mi S Valle Nacional SE slope, 6800’, 10–13/

VIII/1970. Col. A. Newton; human dung; #5; cloud forest.

Conservation status: Complete, well-preserved.

Paratype: 1 ♀. MEXICO: Oaxaca, Valle Nacional, 25 mi S Valle Nacional W slope, 6350’, 10–12/VIII/1970 Col.

A. Newton; human dung; #4, cloud forest. Ex Colección J. Hendrichs S. Conservation status: Complete, well-preserved.