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

Sosa-Calvo, J.; Schultz, T. R. 2010. Three remarkable new fungus-growing ant species of the genus Myrmicocrypta (Hymenoptera: Formicidae), with a reassessment of the characters that define the genus and its position within the Attini. Annals of the Entomological Society of America 103:181-195. PDF

Sosa-Calvo, J.; Schultz, T. R.; Brandão, C. R. F.; Klingenberg, C.; Feitosa, R. M.; Rabeling, C.; Bacci, M., Jr.; Lopes, C. T.; Vasconcelos, H. L. 2013. Cyatta abscondita: taxonomy, evolution, and natural history of a new fungus-farming ant genus from Brazil. PLoS ONE 8 (11):e80498. 10.1371/journal.pone0080498 PDF

Sosa-Calvo, J.; Schultz, T. R.; Ješovnik, A.; Dahan, R. A.; Rabeling, C. 2018. Evolution, systematics, and natural history of a new genus of cryptobiotic fungus‐growing ants. Systematic Entomology 43:549-567. 10.1111/syen.12289 PDF

Sosa-Calvo, J.; Schultz, T. R.; LaPolla, J. S. 2010. A review of the dacetine ants of Guyana (Formicidae: Myrmicinae). Journal of Hymenoptera Research 19:12-43. PDF

Sosa-Calvo, J.; Shattuck, S. O.; Schultz, T. R. 2006. Dacetine ants of Panama: new records and description of a new species (Hymenoptera: Formicidae: Myrmicinae: Dacetini). Proceedings of the Entomological Society of Washington 108:814-821. PDF

Sosiak, C. E.; Borowiec, M. L.; Barden, P. 2022. An Eocene army ant. Biology Letters 18:20220398 (5 pp.). 10.1098/rsbl.2022.0398 PDF

Sosiak, C. E.; Borowiec, M. L.; Barden, P. 2023. Retraction: an Eocene army ant. Biology Letters 19: 20230059:2 pp. 10.1098/rsbl.2023.0059 PDF

Sosiak, C. E.; Borowiec, M. L.; Barden, P. 2023. An invited reply to: A comment on: An Eocene army ant (2022) by Sosiak CE et al. Biology Letters 19 (4):20230140: 3 pp. 10.1098/rsbl.2023.0140 PDF

Sosiak, C. E.; Cockx, P.; Suarez, P. A.; McKellar, R. C.; Barden, P. 2024. Prolonged faunal turnover in earliest ants revealed by North American Cretaceous amber. Current Biology 34:1755-1761. [online early] 10.1016/j.cub.2024.02.058 PDF

Soto, S. U.; Marín, L. A.; Serna, F. 2001. Amplificación y obtención de secuencias de rRNA mitocondrial en hormigas cortadoras de hojas Atta cephalotes (Hymenoptera: Formicidae) de Medellin. Revista Colombiana de Entomología 26:71-76.

Soudek, S. 1921. K variabilite mravencu Leptothorax tuberum Nyl. Casopis Ceskoslovenské Spolecnosti Entomologické 18:1-5. PDF

Soudek, S. 1922a. Príspevky k poznání moravskych mravencu. II. Sborník Klubu Prírodovedeckého v Brne 4:3-6.