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Species Page - Formica obscuripes
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scientific name    Formica obscuripes    

Nest in grasslands devoid of cover (Creighton, 1950).

Found through May to September.

Workers are ~3.2-7.5 mm in length, with dark brown head, dark reddish brown thorax and black abdomen (Wheeler and Wheeler, 1963). Erect hairs are present on the hind tibia and cover all surfaces, the erect hairs on the thorax are unequal and cephalic hairs are just slightly less abundant as on the thorax (Wheeler and Wheeler, 1963).

life history
Not well known, are thought to be temporary social parasites on other Formica rufu group species.

Not of concern.

diet info
Omnivorous, but predate heavily on insects; will also farm aphids.

As far south as Colorado, east to Wisconsin and north to northern British Columbia (Wheeler and Wheeler, 1963). In Alberta are found in the prairie regions (Sharplin, 1966).

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Specimen Info
There are 2 specimens of this species in the online database
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Specimen List (2)


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