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 Obara Y., Watanabe K., Satoh T., 2010: UV reflectance of inter-subspecific hybrid females obtained by crossing cabbage butterflies from Japan (Pieris rapae crucivora) with those from New Zealand (P. rapae rapae). 3 pp. Entomological Science 13(1): 156-158.

 Obraztsov N. S., 1936: Nouvelles formes de Lythria Hb. 5 pp. 

 Obraztsov N. S., 1936: Nouvelles races de Lycaena (Lysandra) thersites Cant. 8 pp. 

 Obraztsov N. S., 1942: Djakonovia gen. nov., eine neue Tortricinen-Gattung (Lep. Tortricidae). 2 pp. 

 Obraztsov N. S., 1949: Eine neue Peronea Curt.-Art aus N. Syrien (Lepidoptera, Tortricidae. 3 pp. Mitteilungen der münchner entomologischen Geselschaft 35-39: 224-225.

 Obraztsov N. S., 1949: Materialien zu einer Revision der palaearktischen Tortricinae-Gattungen (Lep., Tortricidae). I. Allgemeine Aufteilung der Unterfamilie Tortricinae und die Tribe Ceraciini. 7 pp. 

 Obraztsov N. S., 1949: Neue und wenig bekannte Tortriciden-Arten und Formen (Lep.). 13 pp. Mitteilungen der münchner entomologischen Geselschaft 35-39: 198-210.

 Obraztsov N. S., 1949: Über die arabescana (Ev.) – Gruppe der Gattung Pseudeucosma Obr. (nebst Beschreibing einer neunen Art aus dem Kaukasus) (Lepidoptera, Tortricidae). 12 pp. Mitteilungen der münchner entomologischen Geselschaft 35-39: 213-223.

 Obraztsov N. S., 1949: Zur Schwankung der Cornuti-Zahl bei Peronea hastiana (L.) (Lepidoptera, Tortricidae). 3 pp. Mitteilungen der münchner entomologischen Geselschaft 35-39: 211-212.

 Obraztsov N. S., 1950: Näheres über Pseudeucosma tibetana (Car.) (Lepidoptera, Tortricidae). 2 pp. Mitteilungen der münchner entomologischen Geselschaft 40: 243-244.

 Obraztsov N. S., 1952: Zur Revision der Synaphe-Arten der moldavica- und bombycalis-Gruppe (Lepidoptera, Pyralididae). 1 Tafel, 20 Abb., 24 pp. Mitteilungen der münchner entomologischen Geselschaft 42: 87-110.

 Obraztsov N. S., 1953: Systematische Aufstellung und Bemerkungen über die paläarktischen Arten der Gattung Dichrorampha Gn. (Lep. Tortricidae). 92 pp. Mitteilungen der münchner entomologischen Geselschaft 43: 10-101.

 Obraztsov N. S., 1956: Cochylidia gen. nov., eine neue Phaloniidae-Gattung, nebst Beschreibung einer neuen Art aus Deutschland (Lepidoptera). 7 pp. Mitteilungen der münchner entomologischen Geselschaft 46: 14-20.

 Obraztsov N. S., 1963: Some North American moths of the genus Acleris (Lepidoptera: Tortricidae). 58 pp. 

 Obraztsov N. S., 1964: Neotropical Microlepidoptera, V. Synopsis of the species of the genus Proeulia from Central Chile (Lepidoptera: Tortricidae). 14 pp. 

 Obraztsov N. S., 1966: Neotropical Microlepidoptera, VII. New genus Pseudomeritastis and its species (Lepidoptera: Tortricidae). 12 pp. 

 Obraztsov N. S., 1967: Notes on the genus Homonopsis V. Kuznetsov (Lepidoptera, Tortricidae). 3 pp. 

 Obraztsov N. S., : O zmiennosci Lythria purpuraria L. 7 pp. 

 Obry J., 1966: Notule sur quelques Voyageurs clandestins. 3 pp. 

 Ochmann A., 1931: Zucht und Biologie von Zephyrus betulae L. 7 pp. 

 Ohguchi O., 1977: Effect of flight deprivation on activity of adult male of Pieris rapae crucivora Boisduval (Lepidoptera, Pieridae). 9 pp. Kontyu, Tokyo 45(1): 143-151.

 Ohnesorge R., 1984: Hydraecia ultima Holst – neu für die DDR (Lep., Noctuidae). 2 pp. 

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 Ohno S., 2001. New records for geographical distributions of the genus Ostrinia (Lepidoptera: Crambidae) in Japan. 2 pp. [LEP 4708] Japanese Journal of entomology. (N.S.) 4(2): 63-64.

 Ohno S., 2003: A new knotweed-boring of the genus Ostrinia Hübner (Lepidoptera: Crambidae) from Japan. 7 pp. [LEP 5541] Entomological Science 6(2): 77-83.

 Ohshima I., 2003: Holcocera sakura (Lepidoptera: Gelechioidea; Coleophoridae, Blastobasinae), a new species from Japan, associated with Prunus. 5 pp. [LEP 6024] Entomological Science 6(3): 209-213.

 Ohshima I., 2005: Techniques for continuous rearing and assessing host preference of a multivoltine leaf-mining moth, Acrocercops transecta (Lepidoptera: Gracillariidae). 2 pp. Entomological Science 8(3): 227-228.

 Ohshima Y., Yata O., 2005: Redescription of the genus Neoaldania Murayama, 1989 (Lepidoptera, Nymphalidae). 6 pp. Japanese Journal of systematic Entomology (N.S.) 11(2): 209-214.

 Oishi M., Yokota T., Teramoto N., Sato H., 2006: Japanese oak silkmoth feeding preference for and performance on upper-crown and lower-crown leaves. 9 pp.  Entomol. Sci. 9(1): 161-169.

 Okada Y., 1950: Notes on the generic name of so called Euchloe-species from Japan (Pieridae). 8 pp. 

 Okada Y., 1951: Butterflies and Moths. Genus Lamproptera Gray. 8 pp. The Transactions of the Lepidopterological Society of Japan

 Okamoto H., Hirowatari T., 2000: Biology of Vespina nielseni Kozlov (Lepidoptera: Incurvariidae), with description of immature stages and redescription of adults. 8 pp. 

 Oku T., 1968: New or little known species of the subfamily Olethreutinae injurious to coniferous trees from Japan (Lepidoptera: Tortricidae). 10 pp. 

 Oku T., 1979: Acroclita and some allied genera (Lepidoptera: Tortricidae) from Japan, with descriptions of new taxa. 7 pp. 

 Oku T., 1979: Notes on a tortricid moth, Pristerognatha fuligana (Hübner). 2 pp. Kontyu, Tokyo 47(4): 616-617.

 Okyar Z., Aktaç N., 1998: Trakya Bölgesi Heterocera (Lepidoptera) faunasina katkilar. [Contributions to the Heterocera (Lepidoptera) fauna of Turkish Thrace.] 10 pp. Turkish journal of entomology 22(1): 47-56.

 Oldenburg C., Oprean I., Klima B., 1998: The influence of temperature on the synthetic pheromone of the grape moth Lobesia botrana (Lepidoptera: Torricidae) and on pheromone components of three other species of moths. 6 pp. 

 Olivella E., 1993: Biologia i danys provocats per la Minadora circular de les fulles de pomera, Luecoptera malifoliella (Costa, 1836) (Lepidoptera, Lyonetiidae). 1 pp. Ses. Entom. ICHN-SCL, Barcelona. 8: 149.

 Olivier ?, 1933: Note sur les Lépidoptéres Normands. Faune comparée des terrains crétacés et du diluvium. 25 pp. 

 Olivier A., 1994: New data on the butterflies of the Greek island of Sími (Lepidoptera: Hesperioidea, Papilionoidea). 4 pp. Phegea 22(3): 85-88.

 Olivier A., 2000: The butterflies of the Greek island of Níssiros (Lepidoptera: Hesperioidea Papilionoidea). 12 pp. 

 Olliff A. S., 1887: Notes on Zelotypia stacyi, and an account of a variety. 4 pp. 

 Olszak R., Bakowski G., 1976: Mass production of angoumois grain moth – Sitotroga cerealella Oliv. (Lepidoptera, Gelechiidae). 14 pp. (in Polish). 

 Omelko M. M., 1986: A review of gelechiid moths of the genus Parachronistis Meyr. (Lepidoptera, Gelechiidae) with descriptions of new species from the south of Primorye territory. 16 pp. (in Russian). 

 Omelko M. M., 1986: Obzor vyemčatokrylych molej roda Parachronistis Meyr. (Lepidoptera, Gelechiidae) s opisaniem novych vidov iz južnogo Primorja. 16 pp. 

 Omelko M. M., 1991: On the system and morphology of the gelechiid moths of the subfamily Gelechiinae (Lepidoptera, Gelechiidae) with special reference to the fauna of southern Primorye territory. 17 pp. (in Russian). 

 Omwega C. O., Overholt W. A., Mbapila J. C., Kimani-Niogu S. W:, 1997: Establishment and dispersal of Cotesia flavipes (Cameron) (Hymenoptera: Braconidae), an exotic endoparasitoid of Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae) in northern Tanzania. 5 pp. 

 Ono T., 1976: A white mutant in potato tuber moth, Phthorimaea operculella Zeller (Lepidoptera, Gelechiidae). 3 pp. Kontyu, Tokyo 44(1): 108-110.

 Ono T., 1980: Role of the scales as a releaser of the copulation attempt in the silkworm moth, Bombyx mari (Lepidoptera, Bombycidae). 5 pp. Kontyu, Tokyo 48(4): 540-544.