Yabe M., Matsuura K., Arai R., 1991: Sea fishes collected in northern Hokkaido, Japan. 14 pp. Memoirs of the National Science Museum 24: 117-130.
 
ELY 04041
Yadav J. S., Pillai R. K., Yadav A. S., 1990: Karyotypic study of some scarab beetles with comments on phylogeny (Coleoptera: Scarabaeoidea). 11 pp. Elytron 4: 41-51.
 
BOT 287
Yahara T., 1986: Distribution of sexual and agamospermous populations od Boehmeria sylvestrii and its three relatives (Urticaceae). 12 pp. Memoirs of the National Science Museum 19: 121-132.
 
8234
Yakhontov V. V., 1969: Ekologiya nasekomykh. 488 pp.
 
EVE 791
Yakovenko N.S., 2000: New for the fauna of Ukraine rotifers (Rotifera, Bdelloidea) of Adinetidae and Habrotrochidae families. 9 pp. Vestnik zoologii 34(1-2): 11-19.
 
ARH 6
Yamaguchi B., 1988: Human skeletal remains of the Epi-Jomon period from the Chatsu Cave IV Site, the Shakotan Peninsula, Hokkaido. 7 pp. (in Japanese). Memoirs of the National Science Museum 21: 229-235.
 
95315
Yamaguchi B., Ishida H., Matsumura H., 1993: On the skeletal remains of the Kurile Ainu collected by the Late Kingo Hayashi. 19 pp. Memoirs of the National Science Museum 26: 151-169.
 
HNR 87
Yamaguchi B., Yoshiyuki M., Matsukuma A., Nakaike T., Doi Y., Matsubara S., Tomida Y., Mizoguchi Y., 1990: Preface to the Natural History Researches of Amami Shoto and Tokara Retto. 6 pp. (in Japanese). Memoirs of the National Science Museum 23: 1-6.
 
HNR 88
Yamaguchi B., Yoshiyuki M., Matsukuma A., Nakaike T., Katoda Y., Matsubara S., Tomida Y., Mizoguchi Y., 1989: Preface to the Natural History Researches of Amani Shoto and Tokara Retto. 5 pp. (in Japanese). Memoirs of the National Science Museum 22: 1-5.
 
ESC 09247
Yamaguchi T., 2006: Population recovery and spatial dynamics of colony recruitment in a harvester ant: a case study in a park. 8 pp. Entomol. Sci. 9(3): 247-254.
 
BOT 288
Yamamoto A., Nakaike T., 1988: A note on reproductive type and the distribution of Cyrtomium falcatum s. l., Dryopteris varia var. saxifraga, and var. setosa in Aomori Prefecture, Japan. 9 pp. (in Japanese). Memoirs of the National Science Museum 21: 71-79.
 
DIP 3932
Yang D., 1995: Notes on the genus Plagiozopelma from China (Diptera, Dolichopodidae). 4 pp. [M42]
 
EPR 26117
Yang D., 1995: Notes on the genus Plagiozopelma from China (Diptera, Dolichopodidae). 4 pp. [M42] [DIP 3932] Entomological Problems 26(2): 117-120.
 
SPX 16237
Yang D., Yang C.-K., 1993: Notes on the Chinese Eutropha (Insecta, Diptera, Chloropidae). 4 pp. Spixiana 16: 237-240.
 
BOT 289
Yano O., 1982: Ocorrencia de Leucophanes (Leucobryaceae, Bryopsida) na Amazônia brasileira. 6 pp. Amazoniana 7(3): 349-354.
 
ARA 2198
Yanuwiadi B., Schade M., Permana S., Prasetyoaji A., 2000: Entwicklung und Fraßleistung von Plexippus paykulli (Audouin) (Araneae, Salticidae) gegenüber Essigliegen (Drosophila melanogaster). 3 pp. (in German). Mitt. Dtsch. Ges. Allg. Angew. Ent. 12: 541-543.ARAARA
 
DIP 7175
Yarrow I. H. H., 1939: Observations on Asilus crabroniformis (L.) (Diptera). 1 pp.
 
HYM 7239
Yarrow I. H. H., 1941: Melitta leporina (Panz.) and Nomada flavopicta (Kirby) (Hym., Apidae). 2 pp. [M43]
 
HYM 7241
Yarrow I. H. H., 1954: Formica exsecta Nylander (Hym., Formicidae) in the British isles. 3 pp.
 
HYM 7242
Yarrow I. H. H., 1955: Andrena combinata Christ (Hym., Apidae): a bee new to Britain. 2 pp. [M43]
 
HYM 4395
Yarrow I. H. H., 1971: The author and date of certain subgeneric names in Bombus Latreille (Hymenoptera: Apidae). 3 pp.
 
ARA 1736
Yastrebcov A. V., 1991: Embrionalnoe razvitie Phytoseiulus persimilis (Parasitiformes, Phytoseiidae). 4 pp. Vestnik Zool. 1991(3): 60-63.
 
ARA 1737
Yastrebcov A. V., Gorgol V. T., 1991: Skeletno-myshetshnaya trombidiformnogo kleshtsha Anystis baccarum (Trombidiformes, Anystidae). 9 pp. Vestnik Zool. 1991(6): 58-66.
 
ARA 1994
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.
 
HYM 7249
Yasumatsu K., 1958: A new addition to the genera of the Sclerogibbide (Hymenoptera). 5 pp.
 
32110
Yata O., 1981: Comparative morphology of the pupal forewing tracheation in some Japanese species of the family Pieridae (Lepidoptera). 13 pp. Kontyu, Tokyo 49(2): 245-257.
 
LEP 5248
Yata O., Shima H., Saigusa T., Nakanishi A., Suzuki Y., Yoshida A., 1979: Protoperiodic response of four Japanese species of the genus Pieris (Lepidoptera: Pieridae). 6 pp. Kontyu, Tokyo 47(2): 185-190.
 
ARA 1738
Yavornickij V. I., Melamud V. V., 1991: Pancirnye kleshtshi (Acariformes, Oribatei) grabovykh dubrav Pridnestorovya. 6 pp. Vestnik Zool. 1991(1): 17-22.
 
EFA 1728
Yefremova Z. A., Kriskovich M. V., 1996: A new species of Closterocerus Westwood, 1883 from Middle Asia (Hymenoptera, Eulophidae, Entedontinae). 4 pp. Entomofauna 17/28: 425-428.
 
EFA 1824
Yefremova Z. A., Vidal S., 1997: A new species of Hyssopus Girault, 1916 from Germany (Hymenoptera, Chalcidoidea: Eulophidae). 4 pp. [M23] Entomofauna 18/24: 401-404.
 
AZC 3112
Yeh H., 1988: The early records of fossil turtles from China. 6 pp. [REP 106] Acta zoologica cracoviensia 31/12: 451-456.
 
ELY 04185
Yelamos T., Gomy Y., 1990: Aportación al conocimiento de los Cyclobacanius Müller Afrotropicales (Coleoptera: Histeridae: gen. Bacanius Leconte). 7 pp. [16037] Elytron 4: 185-191.
 
ELY 06163
Yélamos T., Gomy Y., 1992: Aportación al conocimiento de los Cyclobacanius Müllerr afrotropicales (Coleoptera: Histeridae) (II). 36 pp. [16038] Elytron 6: 163-198.
 
52595
Ying-Tou Mao, 1949: The species of ichneumon-flies of the genus Cardiochiles occurring in America North of Mexico. 40 pp.
 
GLG 147
Yokoyama K., 1993: Petrological study of the Cretaceous to Paleogene sandstones in the Shiranuka Area, eastern Hokkaido, Japan. 13 pp. Memoirs of the National Science Museum 26: 7-19.
 
ESC 09013
Yorozuya H., 2006: Effects of parasitoids on a mycophagous drosophilid community in northern Japan and an evaluation of the disproportionate parasitism hypothesis. 10 pp. Entomol. Sci. 9(1): 13-22.
 
APT 206
Yoshii R. von, 1991: Über einige von W. Ritter 1910 beschriebene Collembolen aus Indien und Ceylon. 5 pp.
 
ESC 09319
Yoshimatsu S., Nakata Y., 2006: Fungivory of Anatatha lignea, an interesting habit in Noctuidae (Lepidoptera). 7 pp. Entomol. Sci. 9(3): 319-325.
 
BOT 290
Yoshimi S., Doi Y., 1989: Japanese Gasteromycete notes (1). 13 pp. (in Japanese). Memoirs of the National Science Museum 22: 29-41.
 
CUR 1531
Yoshitake H., Masaoka K., Satô S., Nakajima A., Kamitani S., Yukawa J., Kojima H. 2001: Occurrence of Rhynchophorus ferrugineus (Coleoptera: Dryophthoridae) on Nokonoshima Island, southern Japan and its possible invasion further north. 6 pp. (in English). Kyushu Plant Protection Research 47: 145-150.
 
MAM 244
Yoshiyuki M., 1987: The phylogenetic status of Mogera tokudae Kuroda, 1940 on the basis of body skeletons. 11 pp. (in Japanese). Memoirs of the National Science Museum 19: 203-213.
 
MAM 245
Yoshiyuki M., 1988: Notes on the Yezo Raccoon-dog, Nyctereutes procyonoides albus from Okushiri Island off Hokkaido, Japan. 9 pp. (in Japanese). Memoirs of the National Science Museum 21: 189-197.
 
MAM 247
Yoshiyuki M., Hattori S., Tsuchiya K., 1989: Taxonomic analysis of two rare bats from the Amami Islands (Chiroptera, Molossidae and Rhinolophidae). 11 pp. Memoirs of the National Science Museum 22: 215-225.
 
BOT 291
Yoshizaki M., 1988: Marine algea on the coast of Shiranuka, Aomori Prefecture, with special reference to algal flora of the Tsugaru Strait. 10 pp. (in Japanese). Memoirs of the National Science Museum 21: 61-70.
 
BOT 292
Yoshizaki M., Tanaka J., 1986: Biogeography of marine algae on the Japan sea coast of Japan, with special reference to algal flora of the Noto Peninsula. 12 pp. (in Japanese). Memoirs of the National Science Museum 19: 109-120.
 
AZC 0229
Yosii R., 1958: On some remarkable Collembola from Japan. 5 plates, 2 figures, 25 pp. Acta zoologica cracoviensia 2/29: 681-704.
 
APT 547
Yosii R., 1961: Cryophilous insects of the Niigata Prefecture, II. Collembola. 7 pp.
 
EFA 1213
You L., Zhou Z., 1991: A new species of Bracteodes attacking Apis cerana Fabricius 1793 (Hymenoptera, Braconidae, Euphorinae). 7 pp. Entomofauna 12/13: 157-164.
 
AZC 35097
Young C. W., Gelhaus J. K., 1992: Leptotarsus (Longurio) byersi, a new flightless crane fly from Ecuador (Diptera: Tipulidae). 9 pp. [DIP 3944] Acta zoologica cracoviensia 35(1): 97-105.
 
41165
Young D. A., Beirne B. P., 1958: A taxonomic revision of the leafhopper genus Flexamia and a new related genus (Homoptera, Cicadellidae). 53 pp.