Urban C., Kopelke J. P., 2004: Mikroökosystem Weidenkätzchen (Salix spp.) – Struktur und Funktion einer spezialisierten Insektengemeinschaft (Insecta: Coleoptera: Diptera: Lepidoptera: Thysanoptera: Hemiptera: Hymenoptera). 15 pp. Senckenbergiana biologica 84(1/2): 81-95.
MUZ 58
Urban D., 1907: Das Präparieren von Käfern. 4 pp. (in German). Entomologischen Wochenblattes 24:1-4.
ASB 2701
Urban, 1993: Beitrag zum gegenwärtigen zustand unserer Kenntnisse über salicikole Insektenarten in den Weidenanlagen Mährens. 42 pp. [B15]
EBA 02411
Urbani C. B., 1977: Ergebnise der Bhutan-Expedition 1972 des Naturhistorischen Museums in Basel, Hymenoptera: Fam. Formicidae Genus Mayriella. 4 pp. [M51] Entomologica Basiliensia 2: 411-414.
EBA 02415
Urbani C. B., 1977: Ergebnise der Bhutan-Expedition 1972 des Naturhistorischen Museums in Basel, Hymenoptera: Fam. Formicidae Genus Stenamma, con una nuova specie del Kashmir. 8 pp. [M51] Entomologica Basiliensia 2: 415-422.
EBA 02427
Urbani C. B., 1977: Materiali per una revisione della sottofamiglia Leptanillinae Emery (Hymenoptera: Formicidae). 62 pp. [M51] Entomologica Basiliensia 2: 427-488.
GEN 08735
Urhan R., 1997: Two new species of mites of the family Zerconidae from Turkey (Acari: Mesostigmata). 8 pp. [ARA1722] Genus 8(3-4): 735-742.
SPX 36043
Uribe R. A., Nakamura K., Indacochea A., Pacheco A. S., Hooker Y., Schrödl M., 2013: A review on the diversity and distribution of opisthobranch gastropods from Peru, with the addition of three new records (Gastropoda, Heterobranchia). 18 pp. Spixiana 36(1): 43-60.
EVE 741
Ushakov P. V., 1953: Novye vidy mnogoshtshetinkovych tshervej iz semejstva Phyllodocidae (Polychaeta). 3 pp.
APT 529
Usher M. B., Balogun R. A., 1967: A defence mechanism in Onychiurus (Collembola, Onychiuridae). 2 pp.
81131
Usher M. B., Booth R. G., Sparkes K. E., 1982: A review of progress in understanding the organization of communities of soil arthropods. 19 pp.
ARA 1526
Usher M. B., Davis P. R., 1983: The biology of Hypoaspis aculeifer (Canestrini) (Mesostigmata): in there a tendency towards social behaviour 8 pp.
ARA 1726
Ushiwata C. T., Sautter K. D., Kobiyama M., 1995: Influence of compaction of a forest soil on the soil fauna in a subtropical region. I. Oribatei (Acari, Cryptostigmata) and Collembola (Insecta). 9 pp. Revta bras. Zool. 12(4): 905-913.
FHA 20067
Usmani M. K., Rafi U., Shamael Z., 2012: Effects of temperature and humidity on growth and development of Acrida gigantea (Orthoptera: Acridoidea: Acrididae). 7 pp. (in English). Folia Heyrovskyana 20A(1-2): 67-73.
BTE 20005
Ussatchov D. A., 1970: Two main factors in the formation of the wing venation of Diptera. 3 Text figures, 6 pp. [DIP 3612] Beiträge zur Entomologie 20(1-2): 5-10.
SPX 11303
Utschick H., Brandl R., 1989: Roosting activities of the Rainbow Lory (Trichoglossus haematodus) at Wau, Papua New Guinea. 8 pp. Spixiana 11(3): 303-310.
PSC 212
Uyeno T., Matsui N., 1993: Late Cretaceous fish fossils from Nemuro, Hokkaido, Japan. 8 pp. (in Japanese). Memoirs of the National Science Museum 26: 39-46.
MMG 030667
Uyttenboogaart D. L., Zumpt F., 1940: Curculioniden von den Kanaren in der Sammlung G. Frey (München). 12 pp. Mitteilungen der münchner entomologischen Gesellschaft 30(2): 667-678.
ARA 1024
Uzenbaev S. D., 1990: Struktura naselenija i sezonnaja dinamika èislennosti paukov èerpetobija elnika zelenomošnogo. 8 pp.
Urban C., Kopelke J. P., 2004: Mikroökosystem Weidenkätzchen (Salix spp.) – Struktur und Funktion einer spezialisierten Insektengemeinschaft (Insecta: Coleoptera: Diptera: Lepidoptera: Thysanoptera: Hemiptera: Hymenoptera). 15 pp. Senckenbergiana biologica 84(1/2): 81-95. 
Folia Heyrovskyana 20A(1-2): 67-73.