Red wood ants in Switzerland
Key to New England Formica - AntWiki
A tentative key to workers in the Formica sanguinea species group · Natusfera
Key to New England Formica - AntWiki
A tentative key to workers in the Formica sanguinea species group · Natusfera
Stephanie Ants
Formica subsericea - AntWiki
Formica sanguinea Caresheet
Formica - Wikipedia
Formica Ants: Dulosis, Body Snatchers, and Inquilines
Key to Nearctic species in the Formica rufa group - AntWiki
Formica subsericea - AntWiki
Formica aserva - AntWiki
Formica sanguinea - AntWiki