Chemotaxonomic study of undescribed species of Myrmica ant from Idaho

An undescribed species of Myrmica collected in Idaho has been shown to have the same substances in its mandibular glands (3-octanol and 3-octanone and related 3-alkanols and 3-alkanones) and in its Dufour gland (linear alkanes, alkenes, and farnesene isomers and homologs) as previously examined European species of Myrmica. The poison gland contains the trail pheromone 3-ethyl-2,5-dimethylpyrazine, common to all Myrmica species studied so far. The Dufour gland contains large amounts of bishomofarnesene, which easily distinguishes it from some 13 other Myrmica already known