Entomology Collection TitleImage Bugs Pinned
Species Page - Formica impexa
species list search results ->Formica impexa ->species page

E-mail this Page   
Print this Page   
Link to this Page   

scientific name    Formica impexa    

In Alberta have only been found along the bank of the Athabasca River.

Found through May to September.

Workers are ~3.3-6.0 mm in length and head and thorax are red and the abdomen is black (Wheeler, 1905). The epinotum of this species is very low and the erect hairs on the first gastric tergite are very evenly spaced (Wheeler and Wheeler, 1963). The femora and tibiae of Formica impexa along with the antennal scape lack erect hairs.

life history
Are temporary social parasites of other Formica species (Fisher and Cover, 2007). New mated queens invade host nests, kill the queen and take over the nest as the host workers queen, however, unlike Polyergus or some sanguinea group Formica, they do not raid for slaves, and nests of Formica impexa once mature will have no other ant species in it (Wheeler and Wheeler, 1913 and Fisher and Cover, 2007).

Not of concern.

diet info
Omnivorous but are also above ground aphid farmers.

Ranges across most of western North America, (Wheeler, 1913).

quick link

Comments (0)Add New Comment

Comments are published according to our submission guidelines. The EH Strickland Entomological Museum does not necessarily endorse the views expressed.

Add New Comment (all fields are required)

Related Species Info
Display Hierarchy
Specimen Info
There are 5 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (5)


Logo Department of Museums and Collections ServicesLogo University of Alberta