Rzebik-Kowalska B., 1990: Pliocene and Pleistocene Insectivora (Mammalia) of Poland. VII. Soricidae: Mafia Reumer, 1984, Sulimskia Reumer, 1984 and Paenelimnoecus Baudelot, 1972. 25 pp. [80972]  Acta zoologica cracoviensia 33/14: 303-327.

 Beaucournu J. C., Kowalski K., 1990: Quelques siphonapteres (Insecta) de République démocratique de Corée. 14 pp. [M14]  

 Razowski J., Becker V. O., 1990: Descriptions and notes on Orthocomotis Dognin (Lepidoptera: Tortricidae). 21 pp. [31269]  Acta zoologica cracoviensia 33/16: 345-365

 Weiner W. M., 1990: Onychiuridae of Poland. New species of Protaphorura Absolon, 1901 from the Tatra Mts. 5 pp. [APT 190] [M34]  Acta zoologica cracoviensia 33/18: 453-457.

 Namiotko T., 1990: Freshwater Ostracoda (Crustacea) of Zulawy Wislane (Wistula Fen Country, Northern Poland). 26 pp. [80520]  Acta zoologica cracoviensia 33/19: 459-484.

 Szadziewski R., 1990: Brachypogon (Isohelea) silecis, a new species from Poland (Diptera, Ceratopogonidae). 9 pp. [DIP 3477] [M42]  Acta zoologica cracoviensia 33/20: 485-488.

 Szadziewski R., 1990: Notes on gall midges (Diptera, Cecidiomyiidae) from Poland. II. 5 pp. [DIP 3478] [M42]  Acta zoologica cracoviensia 33/21: 489-493.

 Krzeminski W., Krzeminska E., 1990: Tipulomorpha of the Middle Eocena deposits from Pesciara di Bolc near Verona 5 pp. [DIP 1725] [M40]  Acta zoologica cracoviensia 33/22: 495-499.

 Kazmierczak T., 1990: Ichneumonidae (Hymenoptera) of the surroundings of Gastein in the Alps. Part I. 12 pp. [HYM 1935] [M47]  Acta zoologica cracoviensia 33/23: 501-512.

 Rafalski J., 1990: Acopauropus szeptyckii sp. n. (Pauropoda, Eurypauropodidae) from North Korea. 7 pp. [EVE 603]  Acta zoologica cracoviensia 33/24: 513-519.

Woyciechowski M., 1990: Nuptial flights in several ant species and their aerial aggregations (Hymenoptera, Formicidae). 10 pp. [HYM 4385]  Acta zoologica cracoviensia 33/26: 555-564.

 Woyciechowski M., 1990: Mating behaviour in the ant Myrmica rubra (Hymenoptera, Formicidae). 10 pp. [HYM 4384]  Acta zoologica cracoviensia 33/27: 565-574.

 Razowski J., 1990: Descriptions and notes on tropical Tortricini (Lepidoptera, Tortricidae). 20 pp. [31252] [M57]  Acta zoologica cracoviensia 33/28: 575-594.

 Szeptycki A., 1991: Polish Protura. V. Genus Acerentulus Berlese, 1908 (Acerentomidae). 64 pp. [B23] [M14] [M59]  Acta zoologica cracoviensia 34(1): 1-64.

 Kazmierczak T., 1991: Ichneumonidae (Hymenoptera) of the surroundings of Gastein in the Alps. Part II. 34 pp. [M31]  Acta zoologica cracoviensia 34(1): 65-98.

 Razowski J., 1991: The catalogue of the species of Tortricidae (Lepidoptera). Part I: Palaearctic Chlidanotinae and Tortricinae: Cochylini, Tortricini, Ceranini, Cnephasiini. 64 pp. [31254]  Acta zoologica cracoviensia 34(1): 99-162.

 Razowski J., 1991: Notes on cochyline genus Phtheochroa Stephens (Lepidoptera: Tortricidae) with descriptions of new American species. 25 pp. [31253] [M57]  Acta zoologica cracoviensia 34(1): 163-187.

 Dylewska M., 1991: Apoidea of the Tatra Mountains and the adjacaent area. Part I. Colletidae, Andrenidae, Halictidae, Melittidae, Megachilidae and Anthophoridae. 77 pp. [B22] [M14] [M59]  Acta zoologica cracoviensia 34(1): 189-265.

 Potapov M. B., 1991: Species of the genus Isotoma subgenus Parisotoma Bagnall, 1940 and Sericeotoma subgen. nov. (Collembola, Isotomidae) of USSR fauna. 35 pp. [B23]  

 Deharveng L., Bourgeois A., 1991: Two new species of Ceratophysella (Collembola: Hypogastruridae) from Thailand. 8 pp. [APT 19] [M34]  Acta zoologica cracoviensia 34(1): 303-310.

 Krzeminski W., 1991: A first fossil Helius (Diptera, Limoniidae) from North America. 3 pp. [DIP 1720] [M40]  Acta zoologica cracoviensia 34(1): 311-313.

 Sodhi N. S., Singh A., 1991: Three new species of family Syrphidae (Diptera) from India. 8 pp. [DIP 3306] [M40]  Acta zoologica cracoviensia 34(1): 315-322.

Rzebik-Kowalska B., 1991: Pliocene and Pleistocene Insectivora (Mammalia) of Poland. VIII. Soricidae: Sorex Linnaeus, 1758, Neomys Kapu, 1829, Macroneomys Fejfar, 1966, Paenelimnoecus Baudelot, 1972 and Soricidae indeterminata. 102 pp. [80610]  Acta zoologica cracoviensia

 Nadachowski A., Wolsan M., Godawa J., 1991: New localities of Late Cenozoic faunas from Przymilowice in the Cracow-Wielun Upland, Poland. 11 pp. [EVE 514]  Acta zoologica cracoviensia 34(2): 425-435.

Nadachowski A., Baryshnikov G., 1991: Pleistocene snow voles (Chionomys Miller, 1908) (Rodentia, Mammalia) from Northern Caucasus (USSR). 15 pp. [MAM 153]  Acta zoologica cracoviensia 34(2): 437-451.

 Bernard R., Glazaczow A., Samolag J., 1991: Overwintering bat colony in Strzaliny (North-Western Poland). 9 pp. [MAM 87]  Acta zoologica cracoviensia 34(2): 453-461.

 Cichon M., Zajac T., 1991: Avifauna of Bieszczady National Park (SE Poland) in 1987 and 1988 – quantitative and qualitative data. 21 pp. [80276]  Acta zoologica cracoviensia 34(2): 497-517.

 Kies B., 1991: Bird community in a natural beech wood of the lower mountain forest zone of Mt Babia Góra. 15 pp. [AVE 132]  Acta zoologica cracoviensia 34(2): 519-533.

Slizowski J., 1991: Bird community of a spruce forest in the upper mountains forest zone on Pilica (Polish Western Carpathians). 17 pp. [AVE 211]  Acta zoologica cracoviensia 34(2): 535-551.

Bochenski Z., Tomek T., 1991: Late Holocene bird fauna from Duza Sowa Cave (South Poland). 9 pp. [AVE 71]  Acta zoologica cracoviensia 34(2): 553-561.

 Bochenski Z., 1991: Pliocene grouse of the genus Lagopus from Poland. 14 pp. [AVE 67]  Acta zoologica cracoviensia 34(2): 563-577.

Starý J., 1992: Phylogeny and classification of Tipulomorpha, with special emphasis on the family Limoniidae. 26 pp. [61305]  Acta zoologica cracoviensia 35(1): 11-36.

Byers G. W., 1992: Crane flies – three families or one 5 pp. [DIP 451]  Acta zoologica cracoviensia 35(1): 37-41.

Krzeminski W., 1992: Tipula (s. lato) eva n. sp. from Cretaceous (East Asia) – the oldest representative of the family Tipulidae (Diptera, Polyneura). 2 pp. [60679]  Acta zoologica cracoviensia 35(1): 43-44.

Krzeminski W., 1992: The oldest Polyneura (Diptera) and their importance to the phylogeny of the group. 8 pp. [DIP 1722]  Acta zoologica cracoviensia 35(1): 45-52.

 Krzeminska E., 1992: Morphometric study of wing venation in the recent Trichoceridae – an application to the fossils 13 pp. [DIP 1713]  Acta zoologica cracoviensia 35(1): 53-65.

 Dahl C., 1992: Kawasemyia, an invalid genus and Kawasemyiinae, an invalid subfamily of Trichoceridae (Diptera, Nematocera). 5 pp. [DIP 624]  Acta zoologica cracoviensia 35(1): 67-71.

 Krzeminska E., 1992: Paracladurinae – new subfamily (Diptera, Trichoceridae). 6 pp. [DIP 1714]  Acta zoologica cracoviensia 35(1): 73-78.

Pratt H. D., 1992: Key to the winter crane flies of North America (Diptera: Trichoceridae). 7 pp. [DIP 2751]  Acta zoologica cracoviensia 35(1): 79-85.