Flights and swarms of the ant Formica obscuripes Forel
Journal of the Kansas Entomological Society
Flights and swarms of the ant Formica obscuripes Forel are described. In Michigan flights take place during June, in the morning as the temperature rises to 69°F. or above. A colony may have flights on 5 to 16 days. Swarms are of the ground type, in which females gather at a swarming area and stand on grasses, forbs, or bushes while males fly among the plants until they find the females and mating takes place. Swarming areas are maintained throughout the flying season and may be used from year to year.
Talbot, Mary, "Flights and swarms of the ant Formica obscuripes Forel" (1972). Faculty Scholarship. 312.