A relatively common species within Japan.
- 1 Photo Gallery
- 2 Identification
- 3 Distribution
- 4 Biology
- 5 Castes
- 6 Nomenclature
- 7 References
- 8 References based on Global Ant Biodiversity Informatics
Terayama (1996) - This new species is distinguished from Carebara sauteri by the straight outline of mesonotal and propodeal dorsum in profile in major worker (convex in sauteri), angulated posterodorsal corners of propodeum in minor and major workers (rounded in C. sauteri), rnicroreticulation on head in major worker (largely smooth in C. sauteri), and microreticulation on head and pronotum in minor worker (smooth in C. sauteri).
This species was first recorded from Japan by Azuma (1951). Thereafter Japanese myrmecologists have consistently used the name C. sauteri for this relatively common ant. However, C. sauteri was originally described from Taiwan, and morphological comparison between Japanese and Taiwanese specimens suggests that they represent separate species.
Distribution based on Regional Taxon Lists
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- yamatonis. Oligomyrmex yamatonis Terayama, 1996: 23, figs. 48-51 (s.w.) JAPAN.
- Combination in Carebara: Terayama, 2009: 151.
- Status as species: Imai, et al. 2003: 131; Lin & Wu, 2003: 65; Terayama, 2009: 151; Guénard & Dunn, 2012: 41.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
In 1951, Azuma regarded a Japanese Oligomyrmex (=Carebara) species as sauteri Forel, 1912, which is originally described from Pilam (= Peinan, Taitung Hsien), Taiwan. Thereafter the Japanese myrmecologists applied the name sauteri to this relatively common Japanese species. Recently, a species that is morphologically similar to but apparently different from the Japanese "sauteri" has been collected from the Senkaku Is., the Ryukyus. Unfortunately, the present location of the type specimen of O. sauteri Forel is not known, and is not deposited in the Forel collection of Museum d'Histoire naturelle, Geneve nor in Naturhistorisches Museum, Basel. However, I examined a series of specimens from Taiwan (more than 30 colonies from 10 different localities) which were regarded as O. sauteri judging from the original description and the type locality of O. sauteri. The morphological comparison between the Japanese material and the Taiwanese one indicated that Taiwanese and the Senkaku specimens are conspecific, and that the materials from other parts of Japan belong to a different species. So I regarded the Senkaku population as O. sauteri and the common Japanese form as new to science. Accordingly, most previous records of Carebara sauteri from Japan may concern the present new species.
Holotype. Major. HL 0.63 mm; HW 0.53 mm; SL 0.28 mm; CI 84; Sl 53; WL 0.53 mm; PL 0.20 mm; PH 0.18 mm; DPW 0.14 mm; TL 2.3 mm.
Head 1.2 x as long as wide, with parallel sides in frontal view; posterior margin concave medially; vertex with a pair of strong tubercles. Mandibles strong, with 5 teeth. Anterior margin of clypeus concave medially with a pair of dull projections. Antennae with 9 segments; scape short, 0.4 x head length; 2nd segment 1.8x as long as wide; 3rd to 7th segments each wider than long; 8th segment 1.3 x as long as wide; apical segment 2.0 x as long as wide. Eyes small, each consisting of 3 facets, and situated at anterior 3/10 of head capsule in lateral view. Ocelli absent.
Alitrunk as in Fig.; pronotum and anterior 1/3 of mesonotal dorsum strongly raised, and the rest of mesonotal dorsum straight in lateral view; metanotum present, but small; propodeal dorsum straight. Posterodorsal corners of propodeum obtusely angulate, without spine; posterior margins carinate, forming a thin lamellar wall.
Petiole 1.1 x as long as high; anterodorsal and posterodorsal corners dully angulate; dorsal margin of node almost straight in lateral view; subpetiolar process small, forming a dull angle. Postpetiole higher than long, with convex dorsal margin in lateral view.
Head coarsely microreticulate; frons and vertex with many longitudinal striae; alitrunk and petiole microreticulate; postpetiole relatively weakly microreticulate; gaster smooth and shining.
Head dark reddish brown; alitrunk and waist reddish brown; gaster and legs brown with a yellowish tinge.
Paratype minors. HL 0.35-0.36 mm; HW 0.30-0.31 mm; SL 0.20 mm; CI 85-86; CI 65-67; WL 0.30-0.31 mm; PW 0.20 mm; PL 0.12-0.13 mm; PH 0.10 mm; DPW 0:08 mm; TL 0.9 mm (n = 5).
Head slightly longer than wide, with subparallel sides and straight posterior margin in frontal view. Mandibles with 5 teeth. Antennae with 9 segments; 3rd to 7th segments each wider than long; 8th segment slightly longer than wide; apical segment 3.0x as long as wide. Eyes small, consisting of a single facet only.
Dorsal outline of promesonotum broadly convex; metanotal groove distinctly incised dorsally; dorsum of petiole broadly convex. Posterior margins of propodeum carinate, forming a thin lamellar wall; its dorsal end angulate, but not forming a distinct spine.
Petiole 1.2x as long as wide; anterodorsal and posterodorsal corners dully angulate; subpetiolar process minute, forming a dull angle. Postpetiole higher than long, with convex dorsal margin in lateral view.
Head, alitrunk, and petiole coarsely microreticulate; postpetiole weakly microreticulate; gaster smooth and subopaque. Body reddish brown; antennae and legs yellowish brown.
Variation. The microreticulation on pronotum and head in the Yaeyama material is weaker than in the Manazuru material. The number of facets of eyes in the major workers vary from 2 to 4.
Females and males. Described and illustrated by Ogata (1991).
Holotype. Major worker, Manazuru, Kanagawa Pref., 14.IX.1987, M. Terayama leg. Paratypes. 6 major workers, 25 minor workers, same data as holotype; 10 major workers, 30 minor workers, same locality, 13.V.l995, M. Terayama leg.
- Park, S.-H., Hosoishi, S., Ogata, K., Kuboki, Y. 2014. Clustering of ant communities and indicator species analysis using self-organizing maps. Comptes Rendus Biologies 337, 545–552 (doi:10.1016/j.crvi.2014.07.003).
- Terayama, M. 1996b. Taxonomic studies on the Japanese Formicidae, part 2. Seven genera of Ponerinae, Cerapachyinae and Myrmicinae. Nature and Human Activities. 1:9-32. (page 23, figs. 48-51 soldier, worker described)
References based on Global Ant Biodiversity Informatics
- Fukumoto S., R. Satria, T. Maeda, and S. Yamane. 2014. Ant fauna of Gaja-jima, Tokara Islands, southwestern Japan. Nature of Kagoshima 40: 127131.
- Harada Y., K. Tashiro, K. Ebihara, H. Yadori, M. Yoneda, R. Takinami, K. Nagahama, and K. Hayashi. 2008. Ant fauna of the lavas of Sakurajima Volcano, Southern Japan. Bull. Biogeogr. Soc. Japan 63: 205-215.
- Harada Y., M. Enomoto, N. Nishimata, and K. Nishimuta. 2014. Ants of the Tokara Islands, northern Ryukyus, Japan. Nature of Kagoshima 40: 111121.
- Harada Y., T. Sameshima, K. Tashiro, and K. Ebihara. 2006. Ant fauna of the Imuta Lake area, Kagoshima Prefecture, southern Japan. Nanki organisms 48(1): 43-49.
- Hosoichi S., M. Yoshimura, Y. Kuboki, and K. Ogata. 2007. Ants from Yakushima Island, Kagoshima Prefecture. Ari 30: 47-54.
- Hosoichi S., W. Tasen, S. H. Park. A. Le Ngoc, Y. Kuboki, and K. Ogata. 2015. Annual fire resilience of ground-dwelling ant communities in Hiraodai Karst Plateau grassland in Japan. Entomological Science 18: 254–261.
- Hosoishi S. 2006. Ant fauna of Noko Island. pp99-107. In: The floristic and faunistic surveys of the Noko Island.
- Hosoishi S., M. Yoshimura, Y. Kuboki, and K. Ogata. 2007. Ants from Yakushima Island , Kagoshima Prefecture. Ari 30: 47-54.
- Ichikawa A. 1999. Records of ants observed from several localities of Osaka Prefecture, Japan, -1. Ari 23: 1-3.
- Katayama M., T. Hosoya, and W. Toki. 2013: First survey of ground-dwelling ants (Hymenoptera: Formicidae) on the uninhabitedGaja-jima Island, theRyukyu archipelago, Japan.Entomol. Fennica 24: 216222.
- Masuko, K. 2010. Nest density and distribution of subterranean ants in an evergreen broadleaf forest in Japan with special reference to Amblyopone silvestrii. Entomological Science 13:193
- Matsumura S. and Yamane Sk. 2012. Species composition and dominant species of ants in Jigenji Park, Kagoshima City, Japan. Nature of Kagoshima 38: 99107
- 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.
- Park S. H., S. Hosoishi, K. Ogata, and Y. Kuboki. 2014. Clustering of ant communities and indicator species analysis using self-organizing maps. Comptes Rendus Biologies http://dx.doi.org/10.1016/j.crvi.2014.07.003
- 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.
- Shimazaki, A. and Miyashita, T. 2005. Variable dependence on detrital and grazing food webs by generalist predators: aerial insects and web spiders. Ecography 28: 485-495.
- Shimono A., and S. Yamane. 2003. Ant species diversity on Okinoerabu-jima, the Ryukyus, southern Japan. For the Establishment of Remote Islands Study (Kagoshima Univ.) 3: 11-29.
- Terayama M. 1996. Taxonomic studies on the Japanese Formicidae, part 2. Seven genera of Ponerinae, Cerapachyinae and Myrmicinae. Nature & Human Activities 1: 9-32.
- Terayama M. 2001. Ants of the Institute for Nature study in Minato-ku, Tokyo: species composition, relative nest abundance, and nest density. Rept. Inst. Nat. Stu. 33: 289-300.
- Terayama M. 2005. Ants from the Akasaka Imperial Gardens, Tokyo. Mem. Natn. Sci. Mus., Tokyo 39: 239-243.
- Terayama M., S. Kubota, and K. Eguchi. 2014. Encyclopedia of Japanese ants. Asakura Shoten: Tokyo, 278 pp.
- Terayama M., and S. Kubota. 2002. Ants of Tokyo, Japan. ARI 26: 1-32.
- Terayama. M. 2004. Geological and ecological distribution of Japanese ants communities. (translated from Japanese) Reports of the Saitama Prefecture Animal Research Association. 48:29-30
- Terayama. M. 2004. Geological and ecological distribution of Japanese ants communities. (translated from Japanese) Reports of the Saitama Prefecture Animal Research Association. 48:31
- Touyama Y. 2000. Estimating species richness: an application of the time unit sampling method to a myrmecofaunal survey. Jpn. J. Enviro. Entomol. Zool. 11: 51-60.
- Yamane S. 2016. How many species of Ants in Amami Islands? (in Japanese). Part 2, chapter 1 in How many species of Ants in Amami Islands? Pp. 92-132.
- Yamane S., S. Ikudome, and M. Terayama. 1999. Identification guide to the Aculeata of the Nansei Islands, Japan. Sapporo: Hokkaido University Press, xii + 831 pp. pp, 138-317.
- Yamane S., Y. Harada, and K. Eguchi. 2013. Classification and ecology of ants. Natural history of ants in Southern Kyushu. 200 pages
- Yamane S.; Ikudome, S.; Terayama, M. 1999. Identification guide to the Aculeata of the Nansei Islands, Japan. Sapporo: Hokkaido University Press, xii + 831 pp. pp138-317.
- Yoshitomi H., and S. Matsuno. 2012. List of species of Hymenoptera and Diptera in Matsuyama City, Ehime Prefecture, Shikoku, Japan. pp. 167-176. In: Committee for Surveys of Natural Environment of Matsuyama City (Chief Editor: Kazuo ISHIKAWA) (ed.) Checklist of the Wild Animals, Fungi, and Plants of Matsuyama City, 2012. Published by the Department of Environment, Matsuyama City, 404 pp.