- Aphodius (Coelotrachelus) macgregori Islas, 1955

Holotype: ♂. MEXICO: Morelos, L. Zempoala, km 10, 23/XII/1954. Col. A. Barrera; nido de tuza, Cratogeomys merriami .

Conservation status: Complete well-preserved.

Paratypes: 3 ♀. Ídem. Col. F. Islas.

Conservation status: Complete, well-preserved.

Additional notes: Current synonym of Geomyphilus macgregori (Islas, 1955) (see Skelley et al., 2007).