AntCat
Sommer, K.; Hölldobler, B.; Jessen, K. 1994. The unusual social organization of the ant Pachycondyla tridentata (Formicidae, Ponerinae). Journal of Ethology 12:175-185.
Sonan, J. 1912. Studies on Polyrhachis dives F. Smith. [In Japanese.]. Insect World 16:436-440.
Sonan, J. 1940. M. Yanagihara's collection from Daito-Islands, Okinawa: Hymenoptera. Transactions of the Natural History Society of Formosa 30:369-375. PDF

Notes: Formicidae p. 375.

Sonnenburg, H. 1996a. Erstnachweise von Myrmica gallienii Bondroit, 1920 für Nordrhein-Westfalen und Niedersachen (Hymenoptera: Formicidae). Natur und Heimat 56:17-19.
Sonnenburg, H. 1996b. Die Ameisenfauna (Hymenoptera, Formicidae) von Streuobstwiesen bei Rastatt (Baden). Carolinea 54:139-148.
Sonnenburg, H. 2005. Die Ameisenfauna (Hymenoptera: Formicidae) Niedersachsens und Bremens. Braunschweiger Naturkundliche Schriften 7:377-441.
Sonnenburg, H.; Behr, D. 1995. Die Ameisenfauna (Hymenoptera, Formicidae) der Streuobstwiesen bei Wehlen (Kreis Bernkastel-Wittlich) mit weiteren Funde aus dem Moselgebiet. Dendrocopos 22:90-105.
Sonobe, R. 1973. Ant fauna of the Sesoko Island, Okinawa. Sesoko Marine Science Laboratory Technical Report 2:15-16.
Sonobe, R. 1974a. On the occurrence of pseudogyne of Formica japonica Motschulsky (Hymenoptera, Formicidae) in Japan. Kontyû 42:401-403. PDF
Sonobe, R. 1974b. Formicidae of Japan. (1) Proceratium Roger. [In Japanese.]. Ari 6:2-3.
Sonobe, R. 1974c. Slave ants of Formica sanguinea and Polyergus samurai in Japan. [In Japanese.]. Ari 6:3-4.
Sonobe, R. 1976. Formicidae of Japan. (2) Myrmica Latreille and Manica Jurine. [In Japanese.]. Ari 7:1-2.
Sonobe, R. 1977a. Ant fauna of Miyagi Prefecture, Japan. Japanese Journal of Ecology 27:111-116.
Sonobe, R. 1977b. Formicidae of Japan. (3) Formica Linnaeus. [In Japanese.]. Ari 8:1-2.
Sonobe, R. 1985. On Japanese Myrmica ants. [Abstract.] [In Japanese.]. Ari 13:4-5.
Sonobe, R.; Dlussky, G. M. 1977. On two ant species of the genus Formica (Hymenoptera, Formicidae) from Japan. Kontyû 45:23-25. PDF
Sörensen, U. 1999. Coptoformica forsslundi Lohmander, 1949 - eine neue Ameisenart in Deutschland (Hymenoptera: Formicidae). Faunistisch-Ökologische Mitteilungen 7:481-496.
Sörensen, U.; Schmidt, G. H. 1983. Die hügelbauenden Waldameisen in Waldgebieten der Bredstedter Geest (Schleswig-Holstein) (Genus Formica, Insecta). Zeitschrift für Angewandte Zoologie 70:285-319.
Sorger, D. M. 2011a. Redescription and history of Vombisidris jacobsoni (Forel, 1915) (Hymenoptera, Formicidae). Revue Suisse de Zoologie 118:149-155. PDF
Sorger, D. M. 2011b. A new ant species from Borneo closely resembling Tetramorium flagellatum Bolton, 1977 (Hymenoptera: Formicidae). Asian Myrmecology 4:1-7. PDF
Sorger, D. M.; Zettel, H. 2009. Polyrhachis (Myrma) cyaniventris F. Smith, 1858 (Hymenoptera: Formicidae) and a related new ant species from the Philippines. Zootaxa 2174:27-37. PDF
Sorger, D. M.; Zettel, H. 2010. Taxonomic additions to the Polyrhachis (Myrma) cyaniventris species group (Insecta: Hymenoptera: Formicidae). Annalen des Naturhistorischen Museums in Wien. B, Botanik, Zoologie 111:31-36. PDF
Sorger, D. M.; Zettel, H. 2011. On the ants (Hymenoptera: Formicidae) of the Philippine Islands: V. The genus Odontomachus Latreille, 1804. Myrmecological News 14:141-163. PDF
Soroker, V.; Hefetz, A.; Cojocaru, M.; Billen, J.; Franke, S.; Francke, W. 1995. Structural and chemical ontogeny of the postpharyngeal gland in the desert ant Cataglyphis niger. Physiological Entomology 20:323-329.
Sorvari, J. 2002. Tapinoma melanocephalum (Fabricius, 1793) (Hymenoptera: Formicidae), an imported ant species new to Finland, with observations and a taxonomic note. Entomologist's Gazette 53:269-270.
Sosa-Calvo, J.; Brady, S. G.; Schultz, T. R. 2009. The gyne of the enigmatic fungus-farming ant species Mycetosoritis explicata. Journal of Hymenoptera Research 18:113-120. PDF
Sosa-Calvo, J.; Fernández, F.; Schultz, T. R. 2019. Phylogeny and evolution of the cryptic fungus-farming ant genus Myrmicocrypta F. Smith (Hymenoptera: Formicidae) inferred from multilocus data. Systematic Entomology 44 (1):139-162. [online early] 10.1111/syen.12313 PDF
Sosa-Calvo, J.; Ješovnik, A.; Lopes, C. T.; Rodrigues, A.; Rabeling, C.; Bacci, M., Jr.; Vasconcelos, H. L.; Schultz, T. R. 2017. Biology of the relict fungus-farming ant Apterostigma megacephala Lattke, including descriptions of the male, gyne, and larva. Insectes Sociaux 64:329-346. 10.1007/s00040-017-0550-2 PDF
Sosa-Calvo, J.; Ješovnik, A.; Vasconcelos, H. L.; Bacci, M., Jr.; Schultz, T. R. 2017. Rediscovery of the enigmatic fungus-farming ant "Mycetosoritis" asper Mayr (Hymenoptera: Formicidae): Implications for taxonomy, phylogeny, and the evolution of agriculture in ants. PLoS ONE 12 (5):29 pp. e0176498. 10.1371/journal.pone.0176498 PDF

Notes: Mycetosoritis Cyphomyrmex Mycetophylax

Sosa-Calvo, J.; Longino, J. T. 2008. Subfamilia Proceratiinae. Pp. 219-237 in: Jiménez, E.; Fernández, F.; Arias, T.M.; Lozano-Zambrano, F. H. (eds.) 2008. Sistemática, biogeografía y conservación de las hormigas cazadoras de Colombia. Bogotá: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, xiv + 609 pp. PDF