Overson, R.; Fisher, B. L. 2015. Taxonomic revision of the genus Prionopelta (Hymenoptera, Formicidae) in the Malagasy region. ZooKeys 507:115-150. PDF

Oxley, P. R.; Ji, L.; Fetter-Pruneda, I.; McKenzie, S. K.; Li, C.; Hu, H.; Zhang, G.; Kronauer, D. J. 2014. The genome of the clonal raider ant Cerapachys biroi. Current Biology 24:451-458. PDF

Ozaki, M.; Wada-Katsumata, A.; Fujikawa, K.; Iwasaki, M; Yokohari, F.; Satoji, Y; Nisimura, T.; Yamaoka, R. 2005. Ant nestmate and non-nestmate discrimination by a chemosensory sensillum. Science 309:311-314. 10.1126/science.1105244 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

Özdikmen, H. 2010b. New names for the preoccupied specific and subspecific epithets in the genus Pheidole Westwood, 1839 (Hymenoptera: Formicidae). Munis Entomology and Zoology 5 (2):804-806. PDF

Özdikmen, H. 2010c. New names for some preoccupied specific and subspecific epithets in the family Formicidae (Hymenoptera). Munis Entomology and Zoology 5 (supplement):986-1000. PDF

Paaver, K.; Sutt, T. (eds.) 1983. Problems of contemporary Darwinism. [In Russian.]. Tartu: Academy of Sciences of the Estonian SSR, 190 pp.

Pace, R. 1975. Due interessanti reperti mirmecologici per i Monti Lessini e per i Monti Berici (Hymenoptera Formicidae). (XVI Contributo alla conoscenza della fauna endogea.). Bollettino della Società Entomologica Italiana 107:166-170.

Pacheco, J. A.; Mackay, W. P. 2013. The systematics and biology of the New World thief ants of the genus Solenopsis (Hymenoptera: Formicidae). Lewiston, New York: Edwin Mellen Press, 501 pp. PDF

Pacheco, J. A.; Mackay, W. P.; Moreno-Gonzalez, I. 2013. Solenopsis johnsoni Pacheco, Mackay & Moreno, new species. Pp. 193-195 in: Pacheco, J. A.; Mackay, W. P. 2013. The systematics and biology of the New World thief ants of the genus Solenopsis (Hymenoptera: Formicidae). Lewiston, New York: Edwin Mellen Press, 501 pp. PDF

Pacheco, J. A.; Mackay, W. P.; Moreno-Gonzalez, I. 2013. Solenopsis pulleni Pacheco, Mackay & Moreno, new species. Pp. 280-281 in: Pacheco, J. A.; Mackay, W. P. 2013. The systematics and biology of the New World thief ants of the genus Solenopsis (Hymenoptera: Formicidae). Lewiston, New York: Edwin Mellen Press, 501 pp. PDF

Pacheco, J. A.; Mackay, W. P.; Moreno-Gonzalez, I. 2013. Solenopsis quadridentata Pacheco, Mackay & Moreno, new species. Pp. 285-287 in: Pacheco, J. A.; Mackay, W. P. 2013. The systematics and biology of the New World thief ants of the genus Solenopsis (Hymenoptera: Formicidae). Lewiston, New York: Edwin Mellen Press, 501 pp. 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

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

Padilla, R. C.; Miyazawa, E. E. 1972. Distribución geográfica de las especies de hormigas arrieras existentes en la República Mexicana. Fitofilo 67:35-36.

Pagliano, G.; Scaramozzino, P. 1990 ("1989"). Elenco dei generi di Hymenoptera del mundo. Memorie della Società Entomologica Italiana 68:1-210.

Paik, W. H. 1983. Key to the Korean insects. 1. Key to genera of Formicidae (Hymenoptera). [In Korean.]. Seoul National University College of Agriculture Bulletin 8:69-74.

Paik, W. H. 1984. A check list of Formicidae (Hymenoptera) of Korea. [In Korean.]. Korean Journal of Plant Protection 23:193-195.

Paiva, M. R.; Way, M. J.; Cammel, M. 1990. Estudo preliminar sobre a distribuição das formigas nos sistemas florestais em Portugal. Boletim da Sociedade Portuguesa de Entomologia (4)17:197-205.

Paiva, M. R.; Way, M. J.; Cammell, M. 1995. Habitat related diversity of ant communities in Portugal. [Abstract.]. P. 87 in: Demeter, A.; Peregovits, L. (eds.) 1995. Ecological processes: current status and perspectives. Abstracts. 7th European Ecological Congress. Budapest: Hungarian Biological Society, 294 pp.

Paiva, R. V. S.; Brandão, C. R. F. 1995. Nests, worker population, and reproductive status of workers, in the giant queenless ponerine ant Dinoponera Roger (Hymenoptera Formicidae). Ethology Ecology and Evolution 7:297-312.

Paknia, O.; Radchenko, A.; Alipanah, H.; Pfeiffer, M. 2008. A preliminary checklist of the ants (Hymenoptera: Formicidae) of Iran. Myrmecological News 11:151-159. PDF

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

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

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. 2019. Subfamilia Dorylinae. Capítulo 19. Pp. 571-630 in: Fernández, F.; Guerrero, R. J.; Delsinne, T. (eds.) 2019d. Hormigas de Colombia. Bogotá: Universidad Nacional de Colombia, 1198 pp. PDF

Palacio, E. E.; Fernández, F. 1995. Hormigas de Colombia V: nuevos registros. Tacaya 4:6-7.

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.

Palenitschko, Z. G. 1927. Zur vergleichenden Variabilität der Arten und Kasten bei den Ameisen. Zeitschrift für Morphologie und Ökologie der Tiere 9:410-438.