Schmidt, G. H. (ed.) 1974. Sozialpolymorphismus bei Insekten. Probleme der Kastenbildung im Tierreich. Stuttgart: Wissenschaftliche Verlagsgesellschaft mbH, xxiv + 974 pp.

Schmidt, G. H. 1974b. Polymorphismus, Arbeitsteilung, Kastenbildung. Pp. 1-59 in: Schmidt, G. H. (ed.) 1974. Sozialpolymorphismus bei Insekten. Probleme der Kastenbildung im Tierreich. Stuttgart: Wissenschaftliche Verlagsgesellschaft mbH, xxiv + 974 pp.

Schmidt, G. H.; Gürsch, E. 1970. Zur Struktur des Spinnorgans einiger Ameisenlarven (Hymenoptera, Formicidae). Zeitschrift für Morphologie der Tiere 67:172-182.

Schmidt, G. H.; Gürsch, E. 1971. Analyse der Spinnbewegungen der Larve von Formica pratensis Retz. (Form. Hym. Ins.). Zeitschrift für Tierpsychologie 28:19-32.

Schmidt, G. H.; Pohlmann, G. 1960. Die mikroskopische und submikroskopische Struktur der Puppenkokons von Waldameisen (Form. Hym. Ins.). Biologisches Zentralblatt 79:337-342.

Schmidt, J. O. 1986. Chemistry, pharmacology, and chemical ecology of ant venoms. Pp. 425-508 in: Piek, T. (ed.) 1986. Venoms of the Hymenoptera. London: Academic Press, xi + 570 pp.

Schmidt, J. O. 1998. Pogonomyrmex ants: is possession of the world's most lethal arthropod venom a genus-wide trait? [Abstract.]. P. 425 in: Schwarz, M. P.; Hogendoorn, K. (eds.) 1998. Social insects at the turn of the millennium. Proceedings of the XIII International Congress of IUSSI. Adelaide, Australia. 29 December 1998 - 3 January 1999. Adelaide: XIII Congress of IUSSI, 535 pp.

Schmidt, J. O.; Blum, M. S.; Overal, W. L. 1986. Comparative enzymology of venoms from stinging Hymenoptera. Toxicon 24:907-921.

Schmidt, J. O.; Overal, W. L. 2009. Venom and task specialization in Termitopone commutata (Hymenoptera: Formicidae). Journal of Hymenoptera Research 18:361-367. PDF

Schmidt, J. O.; Schmidt, P. J.; Snelling, R. R. 1986. Pogonomyrmex occidentalis, an addition to the ant fauna of Mexico, with notes on other species of harvester ants from Mexico (Hymenoptera: Formicidae). The Southwestern Naturalist 31:395-396.

Schmidt, J. O.; Snelling, G. C. 2009. Pogonomyrmex anzensis Cole: Does an unusual harvester ant species have an unusual venom? Journal of Hymenoptera Research 18:322-325. PDF

Schmidt, J. O.; Starr, C. K. 2009. Omnivorous Roy. Journal of Hymenoptera Research 18:123-124. PDF

Schmidt, K.; Corbetta, R.; de Camargo, A. J. A. 2005. Formigas (Hymenoptera: Formicidae) da Ilha João da Cunha, SC: composição e diversidade. Biotemas 18(1):57-71. PDF

Schmiedeknect, O. (ed.) 1930. Die Hymenopteren Nord- und Mitteleuropas. Zweite Auflage. Jena: G. Fischer, x + 1062 pp.

Schmitz, E. 1911. Etwas über die Ameisen Palästinas. Heilige Land 55:237-240.

Schmitz, H. 1906. Das Leben der Ameisen und ihrer Gäste. Regensburg: G. J. Manz, 190 pp.

Schmitz, H. 1915. De Nederlandsche mieren en haar gasten. Maastricht: C. Goffin, 146 + iv pp.

Schmitz, H. 1932. In memoriam. P. Erich Wassmann S. J. Tijdschrift voor Entomologie 75:1-57.

Schmitz, H. 1950. Formicidae quaedam a cl. A. Stärcke determinatae, quas in Lusitania collegit. Brotéria. Serie Ciencias Naturais 19:12-16. PDF

Schmitz, H. 1955. Ein Verzeichnis portugiesischer Ameisen (Formicidae, Hymenoptera). Brotéria. Serie Ciencias Naturais 24:27-37. PDF

Schneider, D. 1964. Insect antennae. Annual Review of Entomology 9:103-122. PDF

Schneider, J. S. 1909. Hymenoptera aculeata im arktischen Norwegen. Tromso Museums Årshefter [Aarshefter] 29:81-160.

Notes: Formicidae pp. 94-101.

Schneider, L. C.; Fernández, F. 1994. Hymenopteros con aguijón (Hymenoptera: Aculeata) del Parque Regional Natural Ucumarí. Pp. 277-289 in: Rangel Ch., J. O. (ed.) 1994. Ucumarí. Un caso típico de la diversidad biótica andina. Pereira, Colombia: CARDER (Corporación Autónoma Regional de Risaralda), 451 pp.

Notes: Copublished with Universidad Nacional de Colombia, Instituto de Ciencias Naturales.

Schneirla, T. C. 1956. The army ants. Annual Report of the Board of Regents of the Smithsonian Institution 1955:379-406.

Schneirla, T. C. 1957. A comparison of species and genera in the ant subfamily Dorylinae with respect to functional pattern. Insectes Sociaux 4:259-298.

Schneirla, T. C. 1958. The behavior and biology of certain Nearctic army ants. Last part of the functional season, southeastern Arizona. Insectes Sociaux 5:215-255.

Schneirla, T. C. 1965. Cyclic functions in genera of legionary ants (subfamily Dorylinae). Pp. 336-338 in: Freeman, P. (ed.) 1965. XIIth International Congress of Entomology, London, 8-16 July, 1964. Proceedings. London: XIIth International Congress of Entomology, 842 pp.

Schneirla, T. C. 1971. Army ants. A study in social organization. (Edited by H. R. Topoff.). San Francisco: W. H. Freeman & Co., xx + 349 pp.

Schneirla, T. C.; Gianutsos, R. R.; Pasternak, B. S. 1968. Comparative allometry in the larval broods of three army-ant genera, and differential growth as related to colony behavior. American Naturalist 102:533-554.

Schneirla, T. C.; Reyes, A. Y. 1966. Raiding and related behaviour in two surface-adapted species of the old world doryline ant, Aenictus. Animal Behavior 14:132-148.