Formic-acid
Guides
Formica obscuripes
Western Thatching Ant
Formica obscuripes, the western thatching ant, is a North American mound-building ant known for constructing large thatched nests from plant materials. Colonies can contain up to 40,000 workers and demonstrate complex social organization including behavioral constancy in worker task performance. The species employs hybrid foraging strategies combining pheromone-marked columns with visual and path integration navigation. It maintains defensive mutualisms with aphids and exhibits aggressive territorial behavior including the use of formic acid against intruders and competing vegetation.
Formicinae
formicine ants
Formicinae is a large and diverse subfamily of ants characterized by a single-segmented petiole in the form of a vertical scale, reduced stings, and the production of formic acid as a defensive compound. Members retain several primitive features including cocoons around pupae and ocelli in workers. The subfamily includes familiar ants such as carpenter ants (Camponotus), weaver ants (Oecophylla), and honeypot ants (Myrmecocystus). Formicines exhibit diverse ecological strategies including mutualism with sap-feeding hemipterans and specialized slave-making behaviors in some lineages.
Lasius nearcticus
New World Fuzzy Ant
Lasius nearcticus is a species of citronella ant in the family Formicidae, native to eastern North America. It belongs to a genus characterized by the production of citronellal, a lemon-scented compound used for alarm communication and defense. The species is part of the Nearctic fauna and has been documented in the eastern United States and parts of Canada.