Schkaff, B. 1924. Formiche di Constantinopoli. Bollettino della Società Entomologica Italiana 56:90-96.
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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.
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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.
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Santschi, F. 1933g. Sur l'origine de la nervure cubitale chez les Formicides. Mitteilungen der Schweizerischen Entomologischen Gesellschaft 15:557-566. PDF
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Santschi, F. 1922f. Études sur les maladies et les parasites du cacaoyer et d'autres plantes cultivées à S. Thomé. X. Fourmis de S. Thomé. Mémoires publiés par la Société Portugaise des Sciences Naturelles. Série Zoologique 2:60-63.

Notes: Appeared earlier in the form of a separate; see Santschi, 1920i.

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Saini, M. S. 1985. Comparative study of the mesoprepectal area in Hymenoptera. Journal of Entomological Research (New Delhi) 9:132-136.
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