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

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

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

Ogata, K.; Taylor, R. W. 1991. Ants of the genus Myrmecia Fabricius: a preliminary review and key to the named species (Hymenoptera: Formicidae: Myrmeciinae). Journal of Natural History 25:1623-1673. PDF

Ogata, K.; Terayama, M.; Masuko, K. 1995. The ant genus Leptanilla: discovery of the worker-associated male of L. japonica, and a description of a new species from Taiwan (Hymenoptera: Formicidae: Leptanillinae). Systematic Entomology 20:27-34. PDF

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. 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.; Bolton, B. 1989. A taxonomic note on the ant Monomorium intrudens F. Smith (Hymenoptera, Formicidae). Japanese Journal of Entomology 57:459-460. PDF

Ogata, K. 1992b. The ant fauna of the Oriental region: an overview (Hymenoptera, Formicidae). Bulletin of the Institute of Tropical Agriculture Kyushu University 15:55-74. PDF

Ogata, K. 1994a. A taxonomic note on the subfamily Leptanillinae. [Abstract.] [In Japanese.]. Ari 17:2-3.

Ogata, K. 1991b. A generic synopsis of the poneroid complex of the family Formicidae (Hymenoptera). Part II. Subfamily Myrmicinae. Bulletin of the Institute of Tropical Agriculture Kyushu University 14:61-149. PDF

Ogata, K. 1992a. The ant fauna of the Oriental region: an overview (Hymenoptera, Formicidae). [Abstract.]. P. 52 in: XIX International Congress of Entomology 1992. Living with insects. Proceedings XIX International Congress of Entomology. Abstracts. Beijing, China, June 28 - July 4, 1992. Beijing: China Cultural Center, xi. + 730 pp.

Ogata, K. 1987a. A generic synopsis of the poneroid complex of the family Formicidae in Japan (Hymenoptera). Part 1. Subfamilies Ponerinae and Cerapachyinae. Esakia 25:97-132. PDF

Ogata, K. 1987b. Taxonomic note on the ant tribe Dacetini in Japan. [Abstract.] [In Japanese.]. Ari 15:3.

Ogata, K. 1991a. Ants of the genus Myrmecia Fabricius: a review of the species groups and their phylogenetic relationships (Hymenoptera: Formicidae: Myrmeciinae). Systematic Entomology 16:353-381. PDF

Ogata, K. 1983a. Structure and function of the male genitalia of ants. [Abstract.] [In Japanese.]. Ari 11:2.

Ogata, K. 1983b. The ant genus Cerapachys F. Smith of Japan, with description of a new species (Hymenoptera, Formicidae). Esakia 20:131-137. PDF

Ogata, K. 1984. Morphological notes on the wing venation of ants. [Abstract.] [In Japanese.]. Ari 12:4.

Ogata, K. 1985. A generic synopsis of the poneroid complex in Japan. [Abstract.] [In Japanese.]. Ari 13:3-4.

Ogata, K. 1986. Note on the ant fauna of Kyushu, Japan, with reference to the species-area relationship and species composition in different habitats. [Abstract.] [In Japanese.]. Ari 14:3.

Ogata, K. 1990. A new species of the ant genus Epitritus Emery from Japan (Hymenoptera, Formicidae). Esakia Special Issue 1:197-199. PDF

Ogata, K. 1982. Taxonomic study of the ant genus Pheidole Westwood of Japan, with a description of a new species (Hymenoptera, Formicidae). Kontyû 50:189-197. PDF

Oeser, R. 1961. Vergleichend-morphologische Untersuchungen über den Ovipositor der Hymenopteren. Mitteilungen aus dem Zoologischen Museum in Berlin 37:1-119.

Ofer, J. 1970. Polyrhachis simplex. The weaver ant of Israel. Insectes Sociaux 17:49-82. PDF

Ofer, J.; Shulov, A.; Noy-Meir, I. 1978. Associations of ant species in Israel: a multivariate analysis. Israel Journal of Zoology 27:199-208. PDF

Ochi, K. 1983. Distribution pattern of ants in pine stands, with special reference to Monomorium nipponense Wheeler (Hymenoptera: Formicidae). [In Japanese.]. Gensei 44:1-6.