Strongylognathus koreanus

This species is very rare. It has been collected only twice in Japan, from Masutomi-onsen, Yamanashi Prefecture (Nakano,1938), and Washu-zan, Okayama (not Hiroshima) Prefecture (Collingwood, 1976). Both were taken from nests of. This species has long been known but nomenclaturally undetermined in Japan. Terayama (1988) recently identified it as S. koreanus Pisarski, originally described from the Korean Peninsula. There are only two Korean collection records, from Myohyang (the type locality) and Gumpongli-Saryangdo (Kim et al., 1989; Japanese Ant Image Database).

Distribution based on Regional Taxon Lists
Palaearctic Region: China, Democratic Peoples Republic of Korea, Japan, Republic of Korea.

Nomenclature

 * . Strongylognathus koreanus Pisarski, 1966: 519, figs. 36-39 (w.) KOREA.
 * Type-material: holotype worker, 87 paratype workers.
 * Type-locality: Korea: Myohyang Mts, 9.viii.1959 (B. Pisarski & J. Prószyński); paratypes with same data.
 * Type-depository: MIZW.
 * Status as species: Kutter, 1968b: 205; Bolton, 1976: 308; Collingwood, 1976: 304; Ogata, 1991b: 103; Morisita, et al. 1992: 37; Bolton, 1995b: 395; Wu, J. & Wang, 1995: 96; Wei, Xu & He, 2001: 68 (in key); Imai, et al. 2003: 134; Radchenko, 2005b: 148; Guénard & Dunn, 2012: 53; Radchenko, Zhang & Heinze, 2017: 12 (in key).
 * Distribution: China, Japan, Korea.

References based on Global Ant Biodiversity Informatics

 * Choi B.M., K. Ogata, and M. Terayama. 1993. Comparative studies of ant faunas of Korea and Japan. 1. Faunal comparison  among islands of Southern Korean and northern Kyushu, Japan. Bull. Biogeogr. Soc. Japan 48(1): 37-49.
 * Choi B.M., Kim, C.H., Bang, J.R. 1993. Studies on the distribution of ants (Formicidae) in Korea (13). A checklist of ants from each province (Do), with taxonomic notes. Cheongju Sabom Taehakkyo Nonmunjip (Journal of Cheongju National University of Education) 30: 331-380.
 * Collingwood C. A. 1976. Ants (Hymenoptera: Formicidae) from North Korea. Annales Historico-Naturales Musei Nationalis Hungarici 68:
 * Guénard B., and R. R. Dunn. 2012. A checklist of the ants of China. Zootaxa 3558: 1-77.
 * Kim B.J. 1996. Synonymic list and distribution of Formicidae (Hymenoptera) in Korea. Entomological Research Bulletin Supplement 169-196.
 * Kim et al. 1993. Systematic study of ants from Chejudo Province. Koran Journal of Entomology 23(3): 117-141.
 * Komatsu T., and S. Shimamoto 2009. New Knowledge concerning Strongylognathus koreanus. Ari 32: 31-33.
 * Lyu D.P. 2003. Systematics of Myrmicinae from Korea (Hymenoptera: Formicidae). PhD thesis Faculty of the Graduate School of Chungbuk National University 330 pages.
 * Paik W.H. 1984. A checklist of Formicidae (Hymenoptera) of Korea. Korean J. Plant Prot. 23(3): 193-195.
 * Park S.J., and B.J. Kim. 2002. Faunal comparison of ants among Cheongsando and other islands of South Sea in Korea. Korean Journal of Entomology 32(1): 7-12.
 * Park, Seong, Joon and Byung, and Kim, Jin. 2002. Faunal Comparison of Ants among Cheongsando and Other Islands of South Sea in Korea. Korean Jornal of Entomology. 32(1):7-12.
 * Radchenko, A. 2005. Monographic revision of the ants (Hymenoptera, Formicidae) of North Korea. Annales Zoologici 55(2): 127-221.
 * Terayama M. 1992. Structure of ant communities in East Asia. A. Regional differences and species richness. Bulletin of the Bio-geographical Society of Japan 47: 1-31.
 * Terayama M., Choi, B.M., Kim, C.H. 1992. A check list of ants from Korea, with taxonomic notes. Bulletin of the Toho Gakuen 7:19-54.