Yarrow I. H. H., 1939: Observations on Asilus crabroniformis (L.) (Diptera). 1 pp. 

 Yarrow I. H. H., 1939: The aculeate Hymenoptera of a small isolated sand patch in dorset. 2 pp. 

 Yarrow I. H. H., 1941: Melitta leporina (Panz.) and Nomada flavopicta (Kirby) (Hym., Apidae). 2 pp. [M43] 

 Yarrow I. H. H., 1954: Application for the re-examination and rephrasing of the decision taken by the international commission regarding the name of the type species of „Formica“ Linnaeus, 1758 (Class Insecta, order Hymenoptera). 5 pp. 

 Yarrow I. H. H., 1954: Formica exsecta Nylander (Hym., Formicidae) in the British isles. 3 pp. 

 Yarrow I. H. H., 1955: Andrena combinata Christ (Hym., Apidae): a bee new to Britain. 2 pp. [M43] 

 Yarrow I. H. H., 1955: Bombus (Alpinobombus) hyperboreus clydensis, n. ssp. From baffin Island, north-west territories, Canada. 2 pp.  

 Yarrow I. H. H., 1955: The type species of the ant genus Myrmica Latreille. 3 pp. 

 Yarrow I. H. H., 1967: On the Formicidae of the Azores. 9 pp. 

 Yarrow I. H. H., 1971: The author and date of certain subgeneric names in Bombus Latreille (Hymenoptera: Apidae). 3 pp. 

 Yarrow I. H. H., 1977: Notes on British bumblebees. 2 pp. 

 Yasamutsu K., 1971: On some biological control problems in Japan. 5 pp. Israel Journal Ent. 6(2): 301-305.

 Yashiro N., Hirose Y., Honda J. Y., Takeuchi Y., Yashiro T., 2012: A new species of from Japan, with comments on its phylogeny and male wing polymorphism. 8 pp. Entomological Science 15(2): 189-196.

 Yastrebcov A. V., 1991: Embrionalnoe razvitie Phytoseiulus persimilis (Parasitiformes, Phytoseiidae). 4 pp. Vestnik Zool. 1991(3): 60-63.

 Yastrebcov A. V., Gorgol V. T., 1991: Skeletno-myshetshnaya trombidiformnogo kleshtsha Anystis baccarum (Trombidiformes, Anystidae). 9 pp. Vestnik Zool. 1991(6): 58-66.

 Yastrebtsov A., V, 1991: Peculiarities of the muscular system and skeletal parts of the oribatid mite Oribotritia sp. (Oribatida, Ptyctima). 5 pp. (in Russian). Entomologitsheskoe obozrenie 70(2): 495-499.

 Yasuda H., Hagimori K., 1997: Prey consumption patterns of the predatory mosquito, Toxorhynchites towadensis, in relation to prey abundance, prey age structure, and patch size. 8 pp. 

 Yasuda K., 2005: Polyvoltinism of Acrolepiopsis issikiella (Moriuti) (Lepidoptera: Acrolepiidae) and its feeding portions of the host plant. (in Japanese) 3 pp. Japanese Journal of Entomology (N.S.) 8(4): 107-109.

 Yasumatsu K., 1939: The genera Nitela and Rhinonitela of Nippon (Hym., Larridae). 2 pp. 

 Yasumatsu K., 1945: Vespoidea of Micronesia 2 (Hymenoptera). 11 pp. 

 Yasumatsu K., 1951: A new Dryocosmus injurious to chestnut trees in Japan (Hym., Cynipidae). 5 pp. 

 Yasumatsu K., 1952: The occurrence of the orussid genus Ophrynella Ross in New Guinea (Hymenoptera: Orussidae). 5 pp. 

 Yasumatsu K., 1953: Sphecoidea of Micronesia. 4. Revision of the genus Pison spinola. Part 1 (Hymenoptera: Sphecidae). 18 pp. 

 Yasumatsu K., 1954: Orussus boninensis, a new species of Orussidae from the Bonin Islands (Hymenoptera). 4 pp. 

 Yasumatsu K., 1955: On the bee fauna of the Bonin Islands. 5 pp. 

 Yasumatsu K., 1955: Taxonomic notes on three wireworm parasites of the genus Pristocera from the far east (Hymenoptera: Bethyloidea). 17 pp. 

 Yasumatsu K., 1956: Two new species of Roproniidae (Hymenoptera). 6 pp. 

 Yasumatsu K., 1958: A new addition to the genera of the Sclerogibbide (Hymenoptera). 5 pp. 

 Yasumatsu K., 1958: A new species of the genus Ropronia from Saghalien (Hymenoptera, Roproniidae). 3 pp. 

 Yasumatsu K., 1960: Notes on two species of Japanese Bethyloidea (Hymenoptera). 6 pp. 

 Yasumatsu K., 1960: The identity of Paralipsis enervis (Nees) and P. eikoae (Yasumatsu) (Hym., Aphidiidae). 2 pp. 

 Yasumatsu K., 1962: A new species of Telenomus from the Ryukyus (Hym., Scelionidae). 2 pp. 

 Yasumatsu K., Hirashima Y., 1952: Nomada comparata Cockerell and its allied species, Nomada hananoi n. sp. from S. Manchuria (Hymenoptera, Apidae). 6 pp. 

 Yasumatsu K., Hirashima Y., 1953: Three new species of the genus Nomada from Japan and Korea (Hymenoptera, Apidae). 8 pp. 

 Yasumatsu K., Hirashima Y., 1964: Carpenter bees of Japan and the Ryukyus, with a note on Xylocopidae nest by J. C. Harrell (Hymenoptera, Apoidea). 11 pp. 

 Yasumatsu K., Hirashima Y., 1965: Bees (Excluding Halictidae) of the Ruykyu Islands taken in the 1963 and 1964 surveys (Hymenoptera, Apoidea). 13 pp. 

 Yasumatsu K., Hirashima Y., 1965: Two new species of Megachile from Taiwan (Hymenoptera, Apoidea). 12 pp. 

 Yasumatsu K., Ishikawa R., 1955: Four new or little known Pompilidae from Japan (Hymenoptera). 4 pp. 

 Yasunaga T., 1992: A Revision of the Plant Bug Genus Lygocoris Reuter from Japan, Part V (Heteroptera, Miridae, Lygus-complex). 14 pp. 

 Yasunaga T., 1992: A Revision of the Plant Bug, Genus Lygocoris Reuter from Japan, Part IV (Heteroptera, Miridae, Lygus-complex). 16 pp. 

 Yasunaga T., 1992: A Revision of the Plant Bug, Genus Lygocoris Reuter from Japan, Part VI (Heteroptera, Miridae, Lygus-complex). 17 pp. 

 Yasunaga T., 1993: Descriptions of the Last-Instar Nymphs of Four Mirid Species (Heteroptera, Miridae) Found in the Southern Primorskij Kraj, Russia. 8 pp. 

 Yasunaga T., 1994: Review of the Sino-Japanese Plant Bug Genus Parapantilius Reuter (Heteroptera, Miridae), with Description of a New Species from Taiwan. 9 pp. 

 Yasunaga T., 1995: Pseudolygocoris punctulatus, a New Genus and a New Species of the Miridae from Japan (Heteroptera). 6 pp. 

 Yasunaga T., 1996: New Records of the Miridae from Japan (Heteroptera). 2 pp. 

 Yasunaga T., 1996: Two New Species of the Mirine Genus Adelphocoris Reuter from Hokkaido, Japan and the Southern Primorskij Kraj, Russia (Heteroptera, Miridae). 10 pp. 

 Yasunaga T., 1998: Revision of the mirine genus Creontiades Distant and allies from Japan (Heteroptera: Miridae). Part II.: Species of Orientomiris, n. gen. 

 Yasunaga T., 2008: A review of the Far East Asian mirine plant bug genus Loristes (hemiptera: Heteroptera: Miridae: Mirinae), with description of a new species from Japan. 8 pp. (in English). Acta Entomologica Musei Nationalis Pragae 48(2): 395-402.

 Yasunaga T., Schwartz M. D., 2000: Restored status of the genus Chilocrates Horváth (Heteroptera: Miridae), with a review of the species and nomenclatural changes. 11 pp. 

 Yasunaga T., Schwartz M. D., 2007: Revision of the mirine plant bug genus Philostephanus Distant and allies (Heteroptera: Miridae: Mirinae: Mirini). 80 pp. Tijdschrift voor Entomologie 150(1): 101-180.