Hypoponera nubatama

This species is known to have ergatoid males (Japanese Ant Image Database).

Identification
Very similar to Hypoponera opaciceps, distinguished by smaller size and the petiole being narrowed above, essentially lacking a dorsal face.

Distribution based on Regional Taxon Lists
Palaearctic Region: Japan.

Nomenclature

 *  nubatama. Hypoponera nubatama Terayama & Hashimoto, 1996: 2, figs. 1-7 (w.q. ergatoid q.m. ergatoid m.) JAPAN.

References based on Global Ant Biodiversity Informatics

 * Harada Y., D. Fukukura, R. Kurisu, and S. Yamane. 2013. Ants of Ports, monitoring of alien ant species. Bull. Biogeogr. Soc. Japan 68: 29-40.
 * Hosoichi S., M. Yoshimura, Y. Kuboki, and K. Ogata. 2007. Ants from Yakushima Island, Kagoshima Prefecture. Ari 30: 47-54.
 * Hosoishi S., M. Yoshimura, Y. Kuboki, and K. Ogata. 2007. Ants from Yakushima Island, Kagoshima Prefecture. Ari 30: 47-54.
 * Iwata, Kouki, Eguchi, Katsuyuki and Yamane, Seiki. 2005. A Case Study on Urban Ant Fauna of Southern Kyusyu, Japan, with Notes on a New Monitoring Protocol (Insecta, Hymenoptera, Formicidae). Asia-Pacific Entomol. 8(3):263-272.
 * Matsumura S. and Yamane Sk. 2012. Species composition and dominant species of ants in Jigenji Park, Kagoshima City, Japan. Nature of Kagoshima 38: 99107
 * Matsumura S., and S. Yamane. 2012. Species composition and dominant species of ants in Jigenji Park, Kagoshima City, Japan. Nature of Kagoshima 38: 99-107.
 * Sato T., N. Tsurusaki, K. Hamaguchi, and K. Kinomura. 2010. Ant fauna of Tottori prefecture, Honshu, Japan. Bulletin of the Tottori Prefectural Museum 47: 27-44.
 * Terayama M., S. Kubota, and K. Eguchi. 2014. Encyclopedia of Japanese ants. Asakura Shoten: Tokyo, 278 pp.
 * Terayama M.; Hashimoto, Y. 1996. Taxonomic studies on the Japanese Formicidae, part 1. Introduction to this series and descriptions of four new species of the genera Hypoponera, Formica and Acropyga. Nature & Human Activities 1:1-8.
 * Yamane S., Y. Harada, and K. Eguchi. 2013. Classification and ecology of ants. Natural history of ants in Southern Kyushu. 200 pages