The Formicidae (Hymenoptera) of Fennoscandia and Denmark.
Author
Collingwood, C. A.
text
Fauna Entomologica Scandinavica
1979
8
1
174
http://antbase.org/ants/publications/6175/6175.pdf
journal article
6175
Genus
Harpagoxenus
Forel, 1893
Harpagoxenus
Forel, 1893: 167.
Type-species:
Myrmica sublaevis Nylander
, 1849.
Workers and queens. Head large, subrectangular with broad edentate mandibles. Both petiole and postpetiole have strongly developed ventral tooth-like projections. Palp formula 5:3. Antennae 11 segmented.
Male. Similar to
Leptothorax acervorum
but with ventral projecting tooth on postpetiole as in female castes. Antennae 12 segmented.
This genus contains at most 2 or 3 palaearctic and 1 North American species living in semi-parasitic dulotic relationship with members of the closely related genus
Leptothorax