Fungus-Growing Ants

Official Name

Trachymyrmex

Size

16 mm

Color

Grayish Black or Blackish Brown to Rarely Dark Red or Reddish-Brown

Geographical Location

Found in Southwest Texas, South-central New Mexico and the Mexican States.

Common Household Location

Home, Kitchen and Room

Identifying Characteristics

  • Trachymyrmex smithi might be confused with Trachymyrmex jamaicensis due to its large size and dark coloration, but the species are allopatric.
  • Trachymyrmex jamaicensis is only known from southwest Florida, the Florida Keys, and the Caribbean, whereas Trachymyrmex smithi occurs in the deserts of western Texas, New Mexico, and the State of Coahuila in northern Mexico.

Official Name

Trachymyrmex

Size

16 mm

Color

Grayish Black or Blackish Brown to Rarely Dark Red or Reddish-Brown

Geographical Location

Found in Southwest Texas, South-central New Mexico and the Mexican States.

Common Household Location

Home, Kitchen and Room

Identifying Characteristics

  • Trachymyrmex smithi might be confused with Trachymyrmex jamaicensis due to its large size and dark coloration, but the species are allopatric.
  • Trachymyrmex jamaicensis is only known from southwest Florida, the Florida Keys, and the Caribbean, whereas Trachymyrmex smithi occurs in the deserts of western Texas, New Mexico, and the State of Coahuila in northern Mexico.

Notes

The fungus-growing ants (tribe Attini) comprise all the known fungus-growing ant species participating in ant-fungus mutualism. Leafcutter ants, including Atta and Acromyrmex, make up two of the genera.