Okamoto, H. 1954. Ants from Shikoku, Japan (3). [In Japanese.]. Gensei 3:43-49.

Okamoto, H. 1957. Ants from Shikoku, Japan (4). [In Japanese.]. Gensei 5(2):39-43.

Okamoto, H. 1966. Ants from Shikoku, Japan (5). [In Japanese.]. Gensei 16:5-8.

Okamoto, H. 1969. Ants from Shikoku, Japan (6). [In Japanese.]. Gensei 19:5-10.

Okamoto, H. 1972a. Ants from Shikoku, Japan (7). [In Japanese.]. Gensei 23:11-14.

Okamoto, H. 1972b. The occurrence of Triglyphothrix striatidens (Emery) in Kyushu. [In Japanese.]. Gensei 23:14.

Okano, K. 1945. On the ants of Enoshima Is., Kanagawa Prefecture on the late spring. [In Japanese.]. Kontyû Kenkyu 2(4):19-20.

Notes: Not seen. Cited in Okano (1989) and Onoyama & Terayama (1994).

Okano, K. 1946. Some taxonomical notes on the group "Camponotus itoi". [In Japanese.]. Kagaku (Tokyo) 16:187-188.

Notes: Not seen. Cited in Okano (1989) and Onoyama & Terayama (1994).

Okano, K. 1948. Delle note sulle formiche giapponesi. Kontyû Kagaku 5:91-93.

Notes: Not seen. Cited in Okano (1989) and Onoyama & Terayama (1994).

Okano, K. 1989. The list of works concerning Formicidae (Hymenoptera) and it's related papers made by the Japanese during the years 1900-1949. Entomo Shirogane 2:1-15.

Okano, K. 1947a. Some discussions on the classification of ants. [in Japanese.]. Igaku Seibutsugaku 11:164-167. PDF

Notes: Not seen. Cited in Okano (1989) and Onoyama & Terayama (1994).

Okano, K. 1947b. On the ant "suzukikuroyamaari" described by Mr. Teranishi. [In Japanese.]. Igaku Seibutsugaku 11:167-169. PDF

Notes: Not seen. Cited in Okano (1989) and Onoyama & Terayama (1994).

Oldham, N. J.; Morgan, E. D.; Gobin, B.; Billen, J. P. J. 1994. First identification of a trail pheromone of an army ant (Aenictus species). Experientia (Basel) 50:763-765. PDF

Oldham, N. J.; Morgan, E. D.; Gobin, B.; Schoeters, E.; Billen, J. P. J. 1994. Volatile secretions of Old World army ant Aenictus rotundatus and chemotaxonomic implications of army ant Dufour gland chemistry. Journal of Chemical Ecology 20:3297-3305.

Oldham, N. J.; Morgan, E. D.; Hölldobler, B. 1994. The recruitment pheromones of Aphaenogaster (=Novomessor) cockerelli and A. (=Novomessor) albisetosus, two closely related myrmicine ants. P. 486 in: Lenoir, A.; Arnold, G.; Lepage, M. (eds.) 1994. Les insectes sociaux. 12ème congrès de l'Union Internationale pour l'Étude des Insectes Sociaux. Paris, Sorbonne, 21-27 août 1994. Paris: Université Paris Nord, xxiv + 583 pp.

Oliveira, P. S.; Brandão, C. R. F. 1991. The ant community associated with extrafloral nectaries in the Brazilian cerrados. Pp. 198-212 in: Huxley, C. R.; Cutler, D. F. (eds.) 1991. Ant-plant interactions. Oxford: Oxford University Press, xviii + 601 pp.

Oliveira, P. S.; Klitzke, C.; Vieira, E. 1995. The ant fauna associated with the extrafloral nectaries of Ouratea hexasperma (Ochnaceae) in an area of cerrado vegetation in central Brazil. Entomologist's Monthly Magazine 131:77-82.

Oliver, I.; Beattie, A. J. 1993. A possible method for the rapid assessment of biodiversity. Conservation Biology 7:562-568.

Olson, D. M. 1991. A comparison of the efficacy of litter sifting and pitfall traps for sampling leaf litter ants (Hymenoptera, Formicidae) in a tropical wet forest, Costa Rica. Biotropica 23:166-172.

Onoyama, K. 1974. The fossil ants in Mizunami amber: preliminary report (Insecta: Hymenoptera: Formicidae). [In Japanese.]. Bulletin of the Mizunami Fossil Museum 1:445-453.

Onoyama, K. 1976. A preliminary study on the ant fauna of Okinawa-Ken, with taxonomic notes (Japan; Hymenoptera: Formicidae). Pp. 121-141 in: Ikehara, S. (ed.) 1976. Ecological studies of nature conservation of the Ryukyu Islands - (II). Naha, Okinawa: University of the Ryukyus, 141 pp.

Onoyama, K. 1987. An opinion on giving Japanese names of the ants of Japan. [In Japanese.]. Ari 15:6-8.

Onoyama, K. 1980b. The ant fauna of the Tsushima Island, with a comparison with the ant faunas of the adjacent areas. [Abstract.]. P. 32 in: The Organizing Committee 1980. Abstracts. XVI International Congress of Entomology, Kyoto, Japan 3-9 August, 1980. Kyoto: XVI International Congress of Entomology, 480 pp.

Onoyama, K. 1982c. Which should we use - Messor aciculatus or M. aciculatum, and Formica transkaucasica or F. picea? [In Japanese.]. Ari 10:5-6.

Onoyama, K. 1989c. Three ants (Hymenoptera: Formicidae) new to Hokkaido, Japan. Japanese Journal of Entomology 57:604.

Novák, V. 1942. Novy nález mravence Monomorium pharaonis L. (Myrmicidae) v Praze. Casopis Ceskoslovenské Spolecnosti Entomologické 39:135-136. PDF

Novák, V. 1947. Exotictí mravenci ve sklenících Prazské botanické zahrady. Casopis Ceskoslovenské Spolecnosti Entomologické 44:144-146. PDF

Novák, V. 1948. Príspevek k otázce vzniku pathologickich jedincu (pseudogyn) u mravencu z rodu Formica. (Predbezné sdelení). Vestník Ceskoslovenské Zoologické Spolecnosti 12:97-131.

Novák, V. 1944a. Gynandromorphus Myrmica sabuleti. Entomologické Listy 7:56-59. PDF

Novák, V. 1944b. Dicephallus Leptothorax nylanderi r. parvulus Sch. Casopis Ceskoslovenské Spolecnosti Entomologické 41:31-34. PDF