|scientific name Formica obtusipilosa |
Prefer dry open prairies and badlands (Sharplin, 1966, and Wheeler and Wheeler, 1963).
Found through May to September.
Workers are ~3.5-7.0 mm in length, and have a dark red head and thorax with a moderately shiny gaster (Wheeler and Wheeler, 1963). Clypeus has a median notch that is the trait of the sanguinea group of Formica. Dorsum of thorax has erect hairs and gaster is covered in long, erect silver hairs (Wheeler and Wheeler, 1963).
Are facultative slave making ants and readily raid Formica neogates nests for brood.
Not of concern.
Omnivorous, but predate heavily on insects; will also farm aphids.
Restricted to the interior west of North America, from southern Alberta to New Mexico, right up to the eastern side of the Rocky Mountains and east to North Dakota (Wheeler and Wheeler, 1963).
Comments are published according to our submission guidelines. The EH Strickland Entomological Museum does not necessarily endorse the views expressed.