Engel, Michael S.Tanaka, Toshiaki2016-03-252016-03-252015Engel, Michael S., and Toshiaki Tanaka. "A Giant Termite of the Genus Gyatermes from the Late Miocene of Nagano Prefecture, Japan (Isoptera)." Novit. Paleoentomol. Novitates Paleoentomologicae 10 (2015): 1. http://dx.doi.org/10.17161/np.v0i10.4900https://hdl.handle.net/1808/20577This is the published version.A new species of the termite genus Gyatermes Engel & Gross (Archotermopsidae) is described and figured from a beautifully preserved forewing in late Neogene sediments of Nagano Prefecture, central Japan. The approximately 27-mm long forewing of Gyatermes naganoensis Engel & Tanaka, new species, is preserved in Late Miocene (late Messinian) mudstone of the Ogawa Formation (ca. 6 Ma), and is distinguished from its slightly older and larger congener G. styriensis Engel & Gross, from the early Tortonian of Styria, Austria. Comments are provided regarding the paleoclimatic implications of a giant termite in the Miocene fauna of Nagano.TaxonomyIsopteraEuisopteraArchotermopsidaeFossilTermitesGyatermesBiogeographyPaleontologyMioceneArticle10.17161/np.v0i10.4900openAccess