- Geraeus pannuceus Prena, 2009

Holotype: ♂. MEXICO: Chihuahua, km 63, San Juanito-Creel Rd., 2424 m, 27°57'0" N, 107°36'84" W, 9/VIII/ 2007. Col. David G. Furth.

Conservation status: Complete; genitalia in glycerin. Paratype: 1 [unknown sex]. Ídem.

Conservation status: Complete, well-preserved.

Paratypes: 2 [unknown sex]. Ídem. 2350 m, 27°57'0" N, 107°36' W, 13/VII/2006.

Conservation status: Complete, well-preserved.