Zherikhin, V. V.; Sukacheva, I. D.; Rasnitsyn, A. P. 2009. Arthropods in contemporary and some fossil resins. Paleontological Journal 43:987-1005. PDF

Yoshimura, M.; Hosoishi, S.; Kuboki, Y.; Onoyama, K.; Ogata, K. 2009. New synonym and new Japanese record of the ant genus Ponera (Hymenoptera: Formicidae). Entomological Science 12:194-201. PDF

Yoshimura, M.; Fisher, B. L. 2009. A revision of male ants of the Malagasy region (Hymenoptera: Formicidae): key to genera of the subfamily Proceratiinae. Zootaxa 2216:1-21. PDF

Yamane, S. 2009. Odontoponera denticulata (F. Smith) (Formicidae: Ponerinae), a distinct species inhabiting disturbed areas. A R I 32:1-8. PDF

Wild, A. L. 2009. Evolution of the Neotropical ant genus Linepithema. Systematic Entomology 34:49-62. PDF

Wetterer, J. K.; Wild, A. L.; Suarez, A. V.; Roura-Pascual, N.; Espadaler, X. 2009. Worldwide spread of the Argentine ant, Linepithema humile (Hymenoptera: Formicidae). Myrmecological News 12:187-194. PDF

Wetterer, J. K. 2009a. Worldwide spread of the penny ant, Tetramorium bicarinatum (Hymenoptera: Formicidae). Sociobiology 54:1-20. PDF

Wetterer, J. K. 2009b. Worldwide spread of the ghost ant, Tapinoma melanocephalum (Hymenoptera: Formicidae). Myrmecological News 12:23-33. PDF

Wetterer, J. K. 2009c. Worldwide spread of the destroyer ant, Monomorium destructor (Hymenoptera: Formicidae). Myrmecological News 12:97-108. PDF

Wernegreen, J. J.; Kauppinen, S. N.; Brady, S. G.; Ward, P. S. 2009. One nutritional symbiosis begat another: phylogenetic evidence that the ant tribe Camponotini acquired Blochmannia by tending sap-feeding insects. BMC Evolutionary Biology 9:292. 10.1186/1471-2148-9-292 PDF

Wehner, R. 2009. The architecture of the desert ant's navigational toolkit (Hymenoptera: Formicidae). Myrmecological News 12:85-96. PDF

Webb, G. 2009. Invasive ants. Why bother? - A tale of public health and environmental disaster. Tarsus 586:2-4. PDF

Ward, P. S.; Brady, S. G. 2009. Rediscovery of the ant genus Amyrmex Kusnezov (Hymenoptera: Formicidae) and its transfer from Dolichoderinae to Leptanilloidinae. Zootaxa 2063:46-54. PDF

Ward, P. S. 2009a. The ant genus Tetraponera in the Afrotropical region: the T. grandidieri group (Hymenoptera: Formicidae). Journal of Hymenoptera Research 18:285-304. PDF

Ward, P. S. 2009b. Taxonomy, phylogenetics, and evolution. Pp. 3-17 in: Lach, L.; Parr, C. L.; Abbott, K. (eds) 2009. Ant ecology. Oxford: Oxford University Press, xvii + 410 pp. PDF

Ward, D. F. 2009. The diversity, community composition and seasonality of native and introduced ants (Hymenoptera: Formicidae) in northern New Zealand. Myrmecological News 12:195-200. PDF

Wappler, T.; Dlussky, G. M.; Reuter, M. 2009. The first fossil record of Polyrhachis (Hymenoptera: Formicidae: Formicinae) from the Upper Miocene of Crete (Greece). Paläontologische Zeitschrift 83:431-438. PDF

Wang, W.; Zhao, Y. 2009. A taxonomic study on the family Formicidae from Hubei Province. China: Huayu Nature Book Trade, 210 pp.

Vieira, A. S.; Antonialli-Junior, W. F.; Fernandes, W. D.; Tofolo, V. C.; Giannotti, E. 2009. Description of the immature and adult stages of Ectatomma vizottoi (Formicidae: Ectatomminae). Sociobiology 53 (1):27-38. PDF

Varghese, T. 2009. A review of extant subfamilies, tribes and ant genera in India. Biosystematica 3(2):81-89. PDF

Vankerkhoven, F.; Henderickx, H.; Dekoninck, W. 2009. A well preserved fossil ant in Baltic amber of the enigmatic genus Gesomyrmex MAYR, 1868 (Hymenoptera: Formicidae). Bulletin de la Société Royale Belge d'Entomologie 145:87-90. PDF

Terayama, M. 2009. A synopsis of the family Formicidae of Taiwan (Insecta: Hymenoptera). Research Bulletin of Kanto Gakuen University. Liberal Arts 17:81-266. PDF

Taylor, R. W. 2009. Ants of the genus Lordomyrma Emery (1) Generic synonymy, composition and distribution, with notes on Ancyridris Wheeler and Cyphoidris Weber (Hymenoptera: Formicidae: Myrmicinae). Zootaxa 1979:16-28. PDF

Steiner, F. M.; Schlick-Steiner, B. C.; Seifert, B. 2009. Morphology-based taxonomy is essential to link molecular research to nomenclature. Contributions to Natural History (Bern) 12:1295-1315. PDF

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

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

Solis, D. R.; Fox, E. G. P.; Rossi, M. L.; Bueno, O. C. 2009. Description of the immatures of workers of the weaver ant, Camponotus textor (Hymenoptera: Formicidae). Sociobiology 54:541-559. PDF

Solis, D. R.; Caetano, F. H.; Yabuki, A. T.; Moretti, T. C.; Bueno, O. C. 2009. Ultramorphology of the digestive tract of Paratrechina longicornis (Hymenoptera, Formicidae). Sociobiology 53:51-59. PDF

Snelling, R. R.; Snelling, G. C.; Schmidt, J. O.; Cover, S. P. 2009. The sexual castes of Pogonomyrmex anzensis Cole (Hymenoptera: Formicidae). Journal of Hymenoptera Research 18:315-321. PDF

Snelling, G. C.; Cover, S. P. 2009. The status of Neivamyrmex goyahkla and Neivamyrmex ndeh (Hymenoptera: Formicidae). Journal of Hymenoptera Research 18:282-284. PDF