MacKay, W. P. 1980. A new harvester ant from the mountains of southern California (Hymenoptera: Formicidae). The Southwestern Naturalist 25:151-156. PDF

MacKay, W. P. 1981. A comparison of the nest phenologies of three species of Pogonomyrmex harvester ants (Hymenoptera: Formicidae). Psyche (Cambridge) 88:25-74. PDF

MacKay, W. P. 1982. An altitudinal comparison of oxygen consumption rates in three species of Pogonomyrmex harvester ants (Hymenoptera: Formicidae). Physiological Zoology 55:367-377. PDF

MacKay, E. E.; MacKay, W. P. 1985. Apoyo a la actual division generica de hormigas usando etologia comparativa (Hymenoptera, Formicidae). Folia Entomologica Mexicana 61:179-188.

MacKay, W. P. 1985. Acanthostichus sanchezorum (Hymenoptera: Formicidae), una nueva especie de Colombia. Sociobiology 11:127-131. PDF

MacKay, W. P.; MacKay, E. E.; Perez Dominguez, J. F.; Valdez Sanchez, L. I.; Orozco, P. V. 1985. Las hormigas del estado de Chihuahua Mexico: el genero Pogonomyrmex (Hymenoptera: Formicidae). Sociobiology 11:39-54. PDF

MacKay, W. P.; Perez Dominguez, J. F.; Valdez Sanchez, L. I. 1985. The army ants of the state of Chihuahua Mexico (Hymenoptera: Formicidae: Ecitoninae). The Southwestern Naturalist 30:611-612. PDF

MacKay, W. P.; Van Vactor, S. 1985. New host record for the social parasite Pogonomyrmex anergismus (Hymenoptera: Formicidae). Proceedings of the Entomological Society of Washington 87:863. PDF

MacKay, W. P. 1988. [Untitled. Pheidole wheelerorum W. MacKay new species.]. Pp. 96-98 in: MacKay, W. P.; Lowrie, D.; Fisher, A.; MacKay, E. E.; Barnes, F.; Lowrie, D. 1988. The ants of Los Alamos County, New Mexico (Hymenoptera: Formicidae). Pp. 79-131 in: Trager, J. C. (ed.) 1988. Advances in myrmecology. Leiden: E. J. Brill, xxvii + 551 pp. PDF

MacKay, W. P.; Lowrie, D.; Fisher, A.; MacKay, E. E.; Barnes, F. 1988. The ants of Los Alamos County, New Mexico (Hymenoptera: Formicidae). Pp. 79-131 in: Trager, J. C. (ed.) 1988. Advances in myrmecology. Leiden: E. J. Brill, xxvii + 551 pp. PDF

MacKay, W. P.; MacKay, E. E. 1988 ("1986"). Las hormigas de Colombia: arrieras del género Atta (Hymenoptera: Formicidae). Revista Colombiana de Entomología 12(1):23-30. PDF

MacKay, W. P.; Vinson, S. B. 1988 ("1989"). Rediscovery of the ant Gnamptogenys hartmani (Hymenoptera: Formicidae) in eastern Texas. Proceedings of the Entomological Society of Washington 91:127. PDF

MacKay, W. P. 1989. A new Aphaenogaster (Hymenoptera: Formicidae) from southern New Mexico. Journal of the New York Entomological Society 97:47-49. PDF

MacKay, W. P.; Vinson, S. B. 1989a. Two new ants of the genus Solenopsis (Diplorhoptrum) from eastern Texas (Hymenoptera: Formicidae). Proceedings of the Entomological Society of Washington 91:175-178. PDF

MacKay, W. P.; Vinson, S. B. 1989b. A guide to species identification of New World ants (Hymenoptera: Formicidae). Sociobiology 16:3-47. PDF

MacKay, W. P. 1991 ("1990"). Anochetus brevidentatus, new species, a second fossil Odontomachiti ant (Hymenoptera: Formicidae). Journal of the New York Entomological Society 99:138-140. PDF

MacKay, W. P.; Rebeles, A.; Arredondo, H.; Rodriguez, A.; Gonzalez, D.; Vinson, S. B. 1991. Impact of the slashing and burning of a tropical rain forest on the native ant fauna (Hymenoptera: Formicidae). Sociobiology 18:257-268. PDF

MacKay, W. P.; Anderson, R. S. 1992 ("1991"). New distributional records for the ant genus Ponera (Hymenoptera: Formicidae) in North America. Journal of the New York Entomological Society 99:696-699. PDF

MacKay, W. P.; Anderson, R. S. 1993. New distributional records for the ant genus Smithistruma (Hymenoptera: Formicidae) in southern United States. The Southwestern Naturalist 38:388-389. PDF

MacKay, W. P.; Baena, M. L. 1993. A new "horned" fungus growing ant, Cyphomyrmex castagnei, from Colombia. Sociobiology 23:31-37. PDF

MacKay, W. P.; Elias, S. A. 1993 ("1992"). Late Quaternary ant fossils from packrat middens (Hymenoptera: Formicidae): implications for climatic change in the Chihuahuan desert. Psyche (Cambridge) 99:169-184. PDF

Maes, J.-M.; MacKay, W. P. 1993. Catálogo de las hormigas (Hymenoptera: Formicidae) de Nicaragua. Revista Nicaraguense de Entomología 23:1-46. PDF

MacKay, W. P. 1993a. The status of the ant Leptothorax pergandei Emery (Hymenoptera: Formicidae). Sociobiology 21:287-297. PDF

MacKay, W. P. 1993b. A review of the New World ants of the genus Dolichoderus (Hymenoptera: Formicidae). Sociobiology 22:1-148. PDF

MacKay, W. P. 1993c. Succession of ant species (Hymenoptera: Formicidae) on low-level nuclear waste sites in northern New Mexico. Sociobiology 23:1-11. PDF

García-Pérez, J. A.; MacKay, W. P.; González-Villarreal, D.; Camacho-Trujillo, R. 1994 ("1992"). Estudio preliminar de la mirmecofauna del Parque Nacional Chipinque, Nuevo León, México y su distribución altitudinal. Folia Entomologica Mexicana 86:185-190.

MacKay, W. P.; MacKay, E. E. 1994. Lasius xerophilus (Hymenoptera: Formicidae), a new ant species from White Sands National Monument, New Mexico. Psyche (Cambridge) 101:37-43. PDF

MacKay, W. P.; Porter, S.; Fowler, H. G.; Vinson, S. B. 1994. A distribução das formigas lava-pés (Solenopsis spp.) no Estado de Mato Grosso do Sul, Brasil (Hymenoptera: Formicidae). Sociobiology 24:307-317.

MacKay, W. P. 1995. New distributional records for the ant genus Cardiocondyla in the New World (Hymenoptera: Formicidae). Pan-Pacific Entomologist 71:169-172. 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. PDF