Black Crazy Ants

Official Name

Paratrechina

Size

2.3 to 3 mm

Color

Brown/Black with a Bluish Tint

Geographical Location

Found in Tropics and Subtropics Regions throughout the World

Common Household Location

Lawn, Garden, Kitchen, Homes or Out-of-doors.

Identifying Characteristics

  • On warm, humid evenings, large numbers of males gather outside nest entrances and may mill about excitedly. Workers patrol vegetation and other structures nearby. Periodically, a dealate (wingless) queen emerges. Mating was not observed, but Trager (1984) suggested that it occurred in such groupings around the nest entrance. Wings of queens are removed while still callow and males were never observed to fly or use their wings in any way. However, in several cases it has been observed that males frequently appear at lights.

Official Name

Paratrechina

Size

2.3 to 3 mm

Color

Brown/Black with a Bluish Tint

Geographical Location

Found in Tropics and Subtropics Regions throughout the World

Common Household Location

Lawn, Garden, Kitchen, Homes or Out-of-doors.

Identifying Characteristics

  • On warm, humid evenings, large numbers of males gather outside nest entrances and may mill about excitedly. Workers patrol vegetation and other structures nearby. Periodically, a dealate (wingless) queen emerges. Mating was not observed, but Trager (1984) suggested that it occurred in such groupings around the nest entrance. Wings of queens are removed while still callow and males were never observed to fly or use their wings in any way. However, in several cases it has been observed that males frequently appear at lights.

Notes

The longhorn crazy ant (Paratrechina longicornis) is a species of small dark-coloured insect in the family Formicidae. These ants are commonly called “crazy ants” because instead of following straight lines, they dash around erratically. They have a broad distribution, including much of the tropics and subtropics and are also found in buildings in more temperate regions, making them one of the most widespread ant species in the world. This species, as well as all others in the ant subfamily Formicinae, cannot sting.