Perfecto, I.; Vandermeer, J. 1996. Microclimate changes and the indirect loss of ant diversity in a tropical agroecosystem. Oecologia (Berlin) 108:577-582.

Peeters, C. 1997. Morphologically "primitive" ants: comparative review of social characters, and the importance of queen-worker dimorphism. Pp. 372-391 in: Choe, J. C.; Crespi, B. J. (eds.) 1997. The evolution of social behavior in insects and arachnids. Cambridge: Cambridge University Press, xiii + 541 pp.

Peeters, C. 1998. Caste divergence and reproduction in ponerine ants. [Abstract.]. P. 368 in: Schwarz, M. P.; Hogendoorn, K. (eds.) 1998. Social insects at the turn of the millennium. Proceedings of the XIII International Congress of IUSSI. Adelaide, Australia. 29 December 1998 - 3 January 1999. Adelaide: XIII Congress of IUSSI, 535 pp.

Peeters, C.; Ito, F. 2001. Colony dispersal and the evolution of queen morphology in social Hymenoptera. Annual Review of Entomology 46:601-630.

Pearcy, M.; Aron, S.; Doums, C.; Keller, L. 2004. Conditional use of sex and parthenogenesis for worker and queen production in ants. Science (Washington, D. C.) 306:1780-1783. PDF

Pearcy, M.; Hardy, O.; Aron, S. 2006. Thelytokous parthenogenesis and its consequences on inbreeding in an ant. Heredity 96:377-382. PDF

Pavan, G.; Priano, M.; De Carli, P.; Fanfani, A.; Giovannotti, M. 1997. Stridulatory organ and ultrasonic emission in certain species of ponerine ants (genus: Ectatomma and Pachycondyla, Hymenoptera, Formicidae). Bioacoustics 8:209-221.

Pavon, L. F.; Camargo Mathias, M. I. 2005. Ultrastructural studies of the mandibular glands of the minima, media and soldier ants of Atta sexdens rubropilosa (Forel 1908) (Hymenoptera: Formicidae). Micron 36:449-460. PDF

Parr, C.; Chown, S. 2001. Inventory and bioindicator sampling: Testing pitfall and Winkler methods with ants in a South African savanna. Journal of Insect Conservation 5:27-36. PDF

Paul, J.; Roces, F.; Hölldobler, B. 2002. How do ants stick out their tongues? Journal of Morphology 254:39-52.

Parr, C. L.; Robertson, H. G.; Chown, S. L. 2003. Apomyrminae and Aenictogitoninae: two new subfamilies of ant (Hymenoptera: Formicidae) for southern Africa. African Entomology 11:128-129. PDF

Parr, C. L.; Robertson, H. G.; Biggs, H. C.; Chown, S. L. 2004. Response of African savanna ants to long-term fire regimes. Journal of Applied Ecology 41:630-642. PDF

Parker, J. D.; Rissing, S. W. 2002. Molecular evidence for the origin of workerless social parasites in the ant genus Pogonomyrmex. Evolution 56:2017-2028. PDF

Parr, C. L.; Bond, W. J.; Robertson, H. G. 2002. A preliminary study of the effect of fire on ants (Formicidae) in a South African savanna. African Entomology 10:101-111.

Park, S.-J.; Kim, B.-J. 2000b. Genetic and morphological variation of Pheidole fervida (Hym., Formicidae) in Korea. Korean Journal of Entomology 30:169-175.

Parker, J. D. 2004. A major evolutionary transition to more than two sexes? Trends in Ecology and Evolution 19:83-86. PDF

Parker, J. D.; Dowling, T. E.; Johnson, R. A.; Rissing, S. W. 1998. Evolutionary origins of the ant social parasites of the North American seed harvester ants Pogonomyrmex. [Abstract.]. P. 361 in: Schwarz, M. P.; Hogendoorn, K. (eds.) 1998. Social insects at the turn of the millennium. Proceedings of the XIII International Congress of IUSSI. Adelaide, Australia. 29 December 1998 - 3 January 1999. Adelaide: XIII Congress of IUSSI, 535 pp.

Park, S.-J.; Kim, B.-J. 2000a. Systematic study of Pheidolini (Hymenoptera: Formicidae: Myrmicinae) in Korea. Korean Journal of Entomology 30:107-114. PDF

Pall, J. L. M.; Quirán, E. M. 2009. Redescripción de la obrera de Solenopsis leptanilloides (Hymenoptera: Formicidae) y primera cita de la provincia de La Pampa (Argentina). Revista de la Sociedad Entomológica Argentina 68:381-383. PDF

Pang, G.-F.; Qin, F.; Zhou, S.-Y.; Qin, X.-M. 2009. Molecular phylogenetic research on some species of Camponotus (Hymenoptera: Formicidae). Journal of Guangxi Normal University (Natural Science Edition) 27:62-66.

Palacio, E. 1997. Hormigas de Colombia VI. Dos nuevas especies de Octostruma (Hymenoptera: Formicidae: Basicerotini). Caldasia 19:409-418.

Amat-G., G.; Andrade-C., M. G.; Fernández, F. (eds.) 1999. Insectos de Colombia. Volumen II. Bogotá: Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 433 pp.

Palacio, E. 1999. Hormigas legionarias (Hymenoptera: Formicidae: Ecitoninae) de Colombia. Pp. 117-189 in: Amat-G., G.; Andrade-C., M. G.; Fernández, F. (eds.) 1999. Insectos de Colombia. Volumen II. Bogotá: Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 433 pp.

Palacio, E. E. 2003. Subfamilia Ecitoninae. Pp. 281-285 in: Fernández, F. (ed.) 2003. Introducción a las hormigas de la región Neotropical. Bogotá: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, xxvi + 424 pp.

Palacio, E. E.; Fernández, F. 2003. Claves para las subfamilias y géneros. Pp. 233-260 in: Fernández, F. (ed.) 2003. Introducción a las hormigas de la región Neotropical. Bogotá: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, xxvi + 424 pp.

Pacheco, J.; MacKay, W.; Morgan, C. 2004. A new species of Gnamptogenys Roger of the sulcata group (Hymenoptera: Formicidae) from Bolivia. Proceedings of the Entomological Society of Washington 106:434-437. PDF

Paknia, O.; Radchenko, A.; Pfeiffer, M. 2010. New records of ants (Hymenoptera: Formicidae) from Iran. Asian Myrmecology 3:29-38. PDF

Pacheco, J.; Herrera, H. W.; MacKay, W. 2007. A new species of Thief Ant of the genus Solenopsis from the Galapagos Islands (Hymenoptera: Formicidae). Sociobiology 50:1075-1086. PDF

Ouellette, G. D.; Fisher, B. L.; Girman, D. J. 2006. Molecular systematics of basal subfamilies of ants using 28S rRNA (Hymenoptera: Formicidae). Molecular Phylogenetics and Evolution 40:359-369. PDF

Özdikmen, H. 2010a. New names for the preoccupied specific and subspecific epithets in the genus Camponotus Mayr, 1861 (Hymenoptera: Formicidae). Munis Entomology and Zoology 5 (2):519-537. PDF