File:MacKay et al 1995.pdf

MacKay, W. P.; Cover, S. P.; Heinze, J.; Hölldobler, B. 1995. Range extensions for the ant Leptothorax pergandei (Hymenoptera: Formicidae): a mesic forest species discovered in the Chihuahuan Desert. Proceedings of the Entomological Society of Washington 97:888.