Formica impar, Taxa Only, Exact Match: 2 Treatments

Hymenoptera		new species	Say, Thomas, 1836, Descriptions of new species of North American Hymenoptera, and observations on some already described., Boston Journal of Natural History 1, No. 3, pp. 209-305 : 287	287
Formica imparis			Smith, F., 1858, Catalogue of the hymenopterous insects in the collection of the British Museum. Part VI. Formicidae., London: British Museum : 54	54