The genus Myopias Roger, 1861 is distributed in the Australian, Oceanian, Oriental and southern Sino-Japanese realms. Currently 40 valid species and three subspecies have been described, but none have ever been recorded for Thailand. Here we review the species of Thailand, recognizing seven in total. Four are new records of previously described species: Myopias bidens (Emery, 1900), M. crawleyi (Donisthorpe, 1941), M. maligna punctigera (Emery, 1900), and M. mandibularis (Crawley, 1924). Three new species are described: Myopias minima sp. nov. from southern Thailand, M. sakaeratensis sp. nov. from eastern Thailand and M. sonthichaiae sp. nov. from northern and western Thailand. The queen caste of M. mandibularis is described here for the first time and additional descriptions of other species are provided. All these species were found to nest in rotten wood on the forest floor.
AntCat (2017) An Online Catalog of the Ants of the World. Available from: http://www.antcat.org/catalog/430095 (accessed 27 December 2017)
Antweb (2017) Genus: Myopias Roger, 1861. Available from: https://www.antweb.org/images.do?subfamily=ponerinae&genu
s=myopias&rank=genus&project=allantwebants (accessed 27 December 2017)
Antwiki. (2017) Checklist of Myopias species. Available from: http://www.antwiki.org/wiki/Checklist_of_Myopias_species (accessed 27 December 2017)
Billen, J., Stroobants, Z., Wenseleers, T., Hashim, R. & Ito, F. (2013) Diversity and morphology of abdominal glands in workers of the ant genus Myopias. Arthropod Structure and Development, 42, 165–172.
Bolton, B. (1994) Identification Guide to the Ant Genera of the World. Harvard University Press, Cambridge, Massachusetts, 222 pp.
Bolton, B. (1995) A taxonomic and zoogeographical census of the extant ant taxa (Hymenoptera: Formicidae). Journal of Natural History, 29, 1037–1056.
Emery, C. (1900) Formiche raccolte da Elio Modigliani in Sumatra, Engano e Mentawei. Annali del Museo Civico di Storia Naturale Giacomo Doria, Genova, 40, 661–722.
Hölldobler, B. & Wilson, E.O. (1990) The Ants. Harvard University Press, Cambridge, Massachusetts, 733 pp.
Janicki, J.H., Narula, N., Ziegler, M, Guénard, B. & Economo, E.P. (2016) Visualizing and interacting with large-volume biodiversity data using client-server web mapping applications: The design and implementation of antmaps.org. Ecological Informatics, 32, 185–193.
Probst, R.S., Guénard, B. & Boudinot, B.E. (2015) Toward understanding the predatory ant genus Myopias (Formicidae: Ponerinae), including a key to global species, male-based generic diagnosis, and a new species description. Sociobiology, 62, 192–212.
Roger, J. (1861) Die Ponera-artigen Ameisen (Schluss). Berliner Entomologische Zeitschrift, 5, 1–54.
Sakchoowong. W., Jaitrong. W. & Ogata K. (2009) Comparison of ground-ant diversity between natural forests and disturbed forests along a natural gas pipeline transect in Thong Pha Phum National Park, Kanchanaburi province. Kasetsart Journal (Natural Science), 43, 64–73.
Schmidt, C.A. & Shattuck, S.O. (2014) The higher classification of the ant subfamily Ponerinae (Hymenoptera: Formicidae), with a review of ponerine ecology and behavior. Zootaxa, 3817 (1), 1–242.
Smith, F. (1861) Catalogue of hymenopterous insects collected by Mr. A.R. Wallace in the islands of Ceram, Celebes, Ternate, and Gilolo. Journal and Proceedings of the Linnean Society of London. Zoology, 6, 36–48.
Watanasit, S. & Noon-anant, N. (2005) Ants at Ton Nga Chang Wildlife Sanctuary, Songkhla. Sonklanakarin Journal of Science and Technology, 27 (2), 267–280.
Willey, R.B. & Brown, Jr. W.L. (1983) New species of the ant genus Myopias (Hymenoptera: Formicidae: Ponerinae). Psyche, 90, 249–285.
Xu, Z. (1998) Two new record genera and three new species of Formicidae (Hymenoptera) from China. Entomologia Sinica, 5, 121–127.
Xu, Z. & Liu, X. (2012) Three new species of the ant genus Myopias (Hymenoptera: Formicidae) from China with a key to the known Chinese species. Sociobiology, 59, 819–834.
Xu, Z., Burwell, C.J. & Nakamura, A. (2014) A new species of the ponerine ant genus Myopias Roger from Yunnan, China, with a key to the known Oriental species. Sociobiology, 61, 164–170.