Petraeomyrmex

There is a single species from Florissant shale (Oligocene) from Colorado, USA.

Identification
Female. - Small; head subquadrate; scapes short, thick; eyes small, situated on the sides of the head, anterior to the middle line; petiole very small; forewing with two cubital cells.

Castes
queen

Nomenclature

 * † PETRAEOMYRMEX [incertae sedis in Dolichoderinae]
 * †Petraeomyrmex Carpenter, 1930: 55. Type-species: †Petraeomyrmex minimus, by original designation.