Stryk X. von, 1930: Untersuchungen über das Gelenk in der Taille der apocriten Hymenopteren. Inaugural-Disertation zur Erlangung der Doktorwürde genehmigt von der Philosophischen Fakultaet der Friedrich-Wilhelms-Universitaet zu Berlin. 101 pp. 

 Stumpf Y., Stumpf W., 2008: Beobachtungen und interessante Nachweise von Goldwespen (Chrysididae) im Ilm-Kreis, Thüringen. 10 pp. Mittelungen des Thüringer Entomol. e. V. 15(1): 53-62.

 Suay-Cano V. A., Tinaut A., Selfa J., 2002: Las hormigas (Hymenoptera, Formicidae) asociadas a pulgones (Hemiptera, Aphididae) en la provincia de Valencia. 17 pp. [53941] Graellsia 58(1): 21-37.

 Subba Rao B. K., Prakash Sarup & Sharma A. K., 1963: New species of the genus Praon Haliday, 1833 (Hymenoptera, Braconidae: Aphidiinae). With 7 textfigs., 3 pp. [HYM 3797] Beiträge zur Entomologie 13(1-2): 189-191.

 Subba Rao B. R., 1965: A key to species of Anicetus Howard, 1896 (Hymenoptera: Encyrtidae) and descriptions of new species from India. 6 pp. 

 Subba Rao B. R., 1965: A new genus of Encyrtidae from India (Hymenoptera). 4 pp. 

 Subba Rao B. R., Chacko M. J., 1961: Studies on Allophanurus indicus n. sp., an Egg Parasite of Bagrada cruciferarum Kirkaldy (Hymenoptera: Scelionidae). With 2 plates and 1 fig., 12 pp. [HYM 3798] Beiträge zur Entomologie 11(7-8): 812-823.

 Subba Rao B. R., Chacko M. J., 1962: Three new species of Hadrophanurus Kieffer from India with a key to species (Hymenoptera: Scelionidae). With 3 plates, 9 pp. [52210] Beiträge zur Entomologie 12(3-4): 476-484.

 Subba Rao B. R., Kumar S. S., 1960: Effect of Temperature and Host Density on the Rate of Increase of Bracon brevicornis Wesmael. 14 pp. [52211] Beiträge zur Entomologie 10(7-8): 872-885.

 Subba Rao B. R., Rai P. S., 1970: Studies on the Indian species of the genus Anagyrus Howard, 1896 (Hymenoptera: Encyrtidae), With 5 plates. [Untersuchungen der indischen Arten der Gattung Anagyrus Howard, 1896 (Hymenoptera: Encyrtidae)]. 12 pp. [HYM 3799] Beiträge zur Entomologie 20(1-2): 85-96.

 Sudd J. H., 1960: A note on the behaviour of Aenictus (Hym., Formicidae). 1 pp. 

 Sudd J. H., 1963: The natural history of Monomorium pharaonis (L.) (Hym., Formicidae) infesting houses in Nigeria. 3 pp. 

 Sudd J. H., : The foraging methods of some Myrmicine ants in Nigeria. 2 pp. 

 Sudheer K., Narendran T. C., Saji A., 2007: Taxonomy of a new ichneumonid genus from the Middle East (Insecta, Hymenoptera, Ichneumonidae). 4 pp. Senckenbergiana biologica 87(2): 185-188.

 Suetsugu K., 2015: Seed dispersal of the hemiparasitic plant Thesium chinense by Tetramorium tsushimae and Pristomyrmex punctatus. 4 pp. Entomological Science 18(4): 523-526.

 Sugiura S., Yamazaki K., 2003: Host plant, oviposition behavior and larval ecology of a sawfly leafminer, Profenusa japonica (Hymenoptera: Tenthredinidae). 5 pp. (in English). Entomological Science 96: 247-251.

 Sugonjaev E. S., 1983: A review of the genus Blastothrix Mayr (Hymenoptera, Encyrtidae) in North America. 9 pp. (in Russian). Entomologitsheskoe obozrenie 62(3): 601-609.

 Sugonjaev E. S., 1989: A new species of the genus Blastothrix Mayr. (Hymenoptera, Encyrtidae) from Japan. 2 pp. (in Russian). Entomologitsheskoe obozrenie 68(1): 178-179.

 Sugonjaev E. S., 1996: Chalcid wasps (Hymenoptera, Chalcidoidea) parasites on soft scales (Coccinea, Coccidae) in Vietnam. III. Two new species of the genus Coccophagus Westwood. 3 pp. (in Russian). Entomologitsheskoe obozrenie 75(1): 169-171.

 Sugonjaev E. S., 1999: Chalcid wasps (Hymenoptera, Chalcidoidea) parasites on soft scales (Homoptera, Coccidae) in Vietnam. VII. A new peculiar species of the genus Encyrtus Latr. (Encyrtidae) inhabiting ants’ nests (Hymenoptera, Formicidae). 4 pp. (in Russian). Entomologitsheskoe obozrenie 78(2): 453-456.

 Sugonjaev E. S., Gordh G., 1981: Taxonomy and trophic relations of encyrtids of the genus Encyrtus Latr. (Hymenoptera, Encyrtidae) of Holarctic region. 15 pp. (in Russian). Entomologitsheskoe obozrenie 60(4): 883-897.

 Sugonjaev E. S., Voinovich N. D., 1988: Peculiarities of parasitism of chalcids (Hymenoptera, Chalcidoidea) on scale-insects (Homoptera, Coccoidea). II. Plesiomicroterys speciosus Hoffer – a parasite of birch soft scale Eulecanium douglasi Šulc. 6 pp. (in Russian). Entomologitsheskoe obozrenie 67(2): 372-377.

 Sugonyaev E. S., 1965: Palearktičeskie vidy roda Blastothrix Mayr (Hymenoptera, Chalcidoidea), ich biologija i poleznaja rol. Časť II. 16 pp. 

 Sugonyaev E. S., 1974: Opisanie novogo vida iz podsem. Mongolocampinae (Hymenoptera, Chalcidoidea, Tetracampidae) iz Mongolii s opredelitelnoj tablicej rodov i vidov podsemejstva. 7 pp. [HYM 3802] Nasekomye Mongolii 2: 297-303.

 Sugonyaev E. S., 1999: An adaptational basis of realization of parasitization strategies and tactics in chalcid-wasps (Hymenoptera, Chalcidoidea). 6 pp. Zoological sessions 281(1998): 141-146.

 Sugonyaev E. S., Ren Hui, 1993: Chalcids of the genus Coccophagus Westwood (Hymenoptera, Chalcidoidea) of Southeast China. 8 pp. (in Russian). Entomologitsheskoe obozrenie 72(1): 194-201.

 Sugonyaev E. S., Ren Hui, 1993: Naezdniki-chalcidy roda Coccophagus Westwood (Hym., Chalcidoidea) Jugo-Vostočnogo Kitaja. 9 pp. 

 Sullivan C. R., 1965: Laboratory and field investigations on the ability of eggs of the European pine sawfly, Neodiprion sertifer (Geoffroy) to withstand low winter temperatures. 16 pp. 

 Sullivan C. R., Wallace D. R., 1968: Incusions in adults of the European pine sawfly, Neodiptrion sertifer (Geoff.). 5 pp. 

 Sumaroka , 1967: Faktory, vlijajušie na cootnošenie polov u Aphytis proclia Wlk. (Hymenoptera, Aphelinidae) – naružnogo parazita kalifornijckoj šitovki. 12 pp. 

 Sundholm A., 1970: Results of the Lund University Expedition in 1950-1951. Hymenoptera: Proctotrupoidea. 96 pp. South African Animal Life 14.

 Sung I-H., Yamane S., Ho K.-K., Chen W.-S., 2006: Geographic distribution and nesting sites of the Taiwanese stingles bee Trigona ventralis hoozana and an unidentified subspecies of Asian honeybee Apis cerana in Taiwan (Hymenoptera: Apidae). 13 pp. Japanese Journal of Entomology (N.S.) 9(2): 33-45.

 Sung I. H., Dubitzky A., Eardley C., Yamane S., 2009: Descriptions and biological notes of Ctenoplectra bees from southeast Asia and Taiwan (Hymenoptera: Apidae: Ctenoplectrini) with a new species from north Borneo. 17 pp. (in English). Entomological Science 12: 324-340

 Sung I.-H., Shiokawa M., 2012: Synopsis of the bee subgenus Ceratina in Taiwan, with descriptions of four new species (Hymenoptera, Apidae). 16 pp. (in English). Japanese Journal of systematic Entomology (N.S.) 18(1): 155-170.

 Sung I.-H., Yamane S., Ho K.-K., Wu W.-J., Chen Y.-W., 2004: Morphological caste and sex differences in the Taiwanese stingless bee Trigona ventralis hoozana (Hymenoptera: Apidae). 7 pp. Entomological Science 7(3): 263-269.

 Sunyer P. A., Pichot J. M. B., 1902: Catálech Insectes de Catalunya Hymenopters Primera familia. – Tenthredins. 27 pp. 

 Suomalainen P., 1937: Pompiloides sexmaculatus Spin. (Hym., Psammocharidae) wieder in Finnland gefunden. 3 pp. 

 Suwabe M., Ohnishi H., Kikuchi T., Tsuji K., 2007: Nestmate discrimination in the queenless ponerine ant Diacamma sp. from Japan. 4 pp. Entomological Science 10(1): 7-10.

 Suzuki T., 1980: Flesh intake and production of offspring in colonies of Polistes chinensis antennalis (Hymenoptera, Vespidae). I. Flesh intake and worker production by solitary foundress. 11 pp. Kontyu, Tokyo 48(2): 149-159.

 Suzuki T., 1981: Flesh intake and production of offspring in colonies of Polistes chinensis antennalis (Hymenoptera, Vespidae). II. Flesh intake and production of reproductives. 19 pp. Kontyu, Tokyo 49(2): 283-301.

 Suzuki T., 1981: Male production by foudresses of Polistes chinensis antennalis (Hymenoptera, Vespidae) in the founding stage. 2 pp. Kontyu, Tokyo 49(3): 519-520.

 Suzuki T., 1996: Natural History and Social Behaviour of the Cofoundresses in a Primitively Eusocial Wasp, Polistes stigma (Fabricius) (Hymenoptera: Vespidae) in India: A Case Study. 21 pp. 

 Svensson B. G., 1973: Morphological studies on the two Scandinavian subspecies of Bombus lapponicus Fabricius (Hym. Apidae). 8 pp. Entomologisk tidskrift 94(3-4): 140-148.

 Sveum P., 1982: Taxonomical studies on Mymaridae (Hymenoptera) from Malaysia. 7 pp. 

 Swellengrebel N. H., Swellengrebel J. M. H., 1920: List of the anophelines of the Malay Archipelago with special reference to adults and larvae of new or incompletely described species or varieties. 16 pp. 

 Swift H. H., 1946: North American species of the genus Hoplismenus (Hymenoptera: Ichneumonidae). 14 pp. 

 Syed I. H., 1963: Comparative studies of larve of Australian Ceratinine bees (Hymenoptera, Apoidea). 18 pp. 

 Sytshevskaya V. I., 1962: Domovyj pauk Olios sericeus (Croneb.) i ego parazitoid Pseudagenia rufiventris Rad. 8 pp. 

 Szabó J. B., 1956: Beitraege zur Kenntnis der Gattung Teleas Latr. (Hymenoptera, Scelionidae). 13 pp. 

 Szabó J. B., 1956: Eine neue Proctotrupiden-Gattung aus Neu-Guinea (Hymenoptera, Scelionidae). 2 pp.