Otto, D. 1966. Kurze Übersicht über die nomenklatorischen Änderungen im Subgenus Formica und Angaben zur Unterscheidung der Geschlechtstiere. Entomologische Nachrichten. Dresden 10:121-125.

Otto, D. 1968. Zur Verbreitung der Arten der Formica rufa Linnaeus-Gruppe. I. Häufigkeit, geographische Verteilung und Vorzugsstandorte der Roten Waldameisen im Gebiet der Deutschen Demokratischen Republik (Hymenoptera: Formicidae). Beiträge zur Entomologie 18:671-692. PDF

Otto, D.; Paraschivescu, D. 1968. Zur Verbreitung der Arten der Formica rufa Linnaeus-Gruppe. II. Die hügelbauenden Formica-Arten in der Sozialistischen Republik Rumänien (Hymenoptera: Formicidae). Beiträge zur Entomologie 18:693-698. PDF

Ovazza, M. 1950. Contribution à la connaissance des fourmis des Pyrénées-Orientales. Récoltes de J. Hamon. Vie Milieu 1:93-94.

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.

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

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.

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

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

Palma, R. L.; Lovis, P. M.; Tother, C. 1989. An annotated list of primary types of the phyla Arthropoda (except Crustacea) and Tardigrada held in the National Museum of New Zealand. National Museum of New Zealand Miscellaneous Series 20:1-49.

Notes: Formicidae p. 38.

Palomeque, T.; Chica, E.; Cano, M. A.; Díaz de la Guardia, R. 1988. Karyotypes, C-banding, and chromosomal location of active nucleolar organizing regions in Tapinoma (Hymenoptera, Formicidae). Genome 30:277-280.

Palomeque, T.; Chica, E.; Cano, M. A.; Díaz de la Guardia, R. 1990. Development of silver stained structures during spermatogenesis in different genera of Formicidae. Genetica 81:51-58.

Ogata, K. 1994b. The Oriental chaos: current state and prospect of ant taxonomy in the Oriental region. [Abstract.] [In Japanese.]. Ari 18:36-37.

Ogata, K. 1994c. Ant fauna of the Nansei Islands, Japan. [Abstract.] [In Japanese.]. Ari 18:39.

Ogata, K.; Hirashima, Y.; Miura, T.; Maeta, Y.; Yano, K.; Ko, J.-H. 1985. Ants collected in pine forests infested by the pine needle gall midge in Korea (Hymenoptera, Formicidae). Esakia 23:159-163.

Ogata, K.; Touyama, Y.; Choi, B.-M. 1994. Ant fauna of Hiroshima Prefecture, Japan. [In Japanese.]. Ari 18:18-25.

Ohta, Y. 1940. Two species of ants from South China. [In Japanese.]. Insect World 44:332-335. PDF

Ohta, Y. 1931a. The check-list of ants from Gifu Prefecture, 1. [In Japanese.]. Insect World 35:85-89.

Ohta, Y. 1931b. The check-list of ants from Gifu Prefecture, 2. [In Japanese.]. Insect World 35:115-120.

Ohta, Y. 1935a. A list of Japanese ants. [In Japanese.] [part]. Insect World 39:286-289. PDF

Ohta, Y. 1936a. A list of Japanese ants. [In Japanese.] [part]. Insect World 40:166-169. PDF

Ohta, Y. 1936b. A list of Japanese ants. [In Japanese.] [concl.]. Insect World 40:426-433. PDF

Ohta, Y. 1938a. Five species of ants from Kinkasan, Gifu. [part] [In Japanese.]. Insect World 42:125-129. PDF

Ohta, Y. 1938b. Five species of ants from Kinkasan, Gifu. [concl.] [In Japanese.]. Insect World 42:186-188. PDF

Okamoto, H. 1952. Ants from Shikoku, Japan (1). [In Japanese.]. Gensei 1:9-12.

Okamoto, H. 1953. Ants from Shikoku, Japan (2). [In Japanese.]. Gensei 2:39-43.