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Temnothorax basara
| Temnothorax basara | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Crematogastrini |
| Genus: | Temnothorax |
| Species: | T. basara |
| Binomial name | |
| Temnothorax basara (Terayama & Onoyama, 1999) | |
| Common Name | |
|---|---|
| Yaeyama-muneboso-ari | |
| Language: | Japanese |
The type material from Iriomote Island, Japan, were collected from a rotting fallen tree which was partly buried in the ground (Terayama & Onoyama, 1999; Japanese Ant Image Database).
Identification
Terayama and Onoyama (1999) - Total length of workers around 2 mm. Body color yellow. Scapes reaching posterior margin of head in full-face view. Metanotal groove not incised dorsally. Dorsum of propodeum straight in profile; propodeal spines very long and thin, directing much upwards. Petiole with relatively long peduncle, node reverse U-shaped; anterior margin of node much more steeply sloping than posterior margin. Dorsum of mesosoma densely punctulate, without rugae.
This species resembles Temnothorax indra from Okinawa I., and Temnothorax confucii from Taiwan. However, it is distinguished from the latter two by the absence of rugae on the mesosomal dorsum, the much more steeply sloping anterior margin of the petiolar node, the more upwardly directing propodeal spines, and the small body size.
Keys including this Species
Distribution
Ishigaki I., Iriomote I.
Distribution based on Regional Taxon Lists
Palaearctic Region: Japan (type locality).
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
Countries Occupied
| Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species. |
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Estimated Abundance
| Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species. |
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Biology
Castes
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- basara. Leptothorax basara Terayama & Onoyama, 1999: 80, fig. 19 (w.) JAPAN. Combination in Temnothorax: Bolton, 2003: 271.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Holotype. HL 0.57 mm; HW 0.47 mm· CI 82; SL 0.44 mm; SI 94; WL 0.63 mm; PW 0.33 mm; PtW 0.15 mm; PtH 0.18 mm; TL 2.1 mm.
Head 1.2 times as long as wide, with slightly convex posterior margin in full-face view; sides behind eyes a little conversing posteriorly. Mandibles longitudinally rugulose. Median clypeal lobe weakly produced; anterior margin evenly convex. Antennae with 12 segments; scapes relatively long, reaching posterior margin of head in full-face view. Eyes moderate in size, maximum diameter 0.12 mm, with about 10 facets in the longest row.
Promesonotal dorsum slightly convex in profile. Metanotal groove not incised dorsally. Dorsum of propodeum straight in profile; propodeal spines long and thin, directing much upwardly and their dorsal margin forming an angle of 120 degrees with propodeal dorsum in side view.
Petiole with relatively long peduncle; node reverse U-shaped; anterior margin of node much more steeply sloping than posterior margin. Subpetiolar process present, but small. Postpetiolar node nearly as long as high, with convex dorsal margin; in dorsal view 1.4 times as wide as long.
Head and mesosoma densely punctulate, without distinct rugae; petiole and postpetiole more weakly punctulate; gaster smooth and shining.
Head dorsum with erect hairs; mesosomal dorsum with about 18 erect hairs which are longer than those on head dorsum; petiole with 2 pairs, postpetiole with 3 pairs of erect hairs; gaster with scattered erect to suberect hairs.
Body color yellow.
Type Material
Holotype. Worker, Shirahama, Iriomote I., Okinawa Pref., 23.III.1975, K. Onoyama leg. Paratypes. 2 workers, same data as holotype.
Determination Clarifications
This species corresponds to Leptothorax sp. B. of Onoyama (1976) and Leptothorax sp. 12 of Terayama et al. (1992).
References
- Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71: 370pp (page 271, Combination in Temnothorax)
- Terayama, M. and K. Onoyama. 1999. The ant genus Leptothorax Mayr (Hymenoptera: Formicidae) in Japan. Memoirs of the Myrmecological Society of Japan. 1:71-97.
References based on Global Ant Biodiversity Informatics
- Terayama M., S. Kubota, and K. Eguchi. 2014. Encyclopedia of Japanese ants. Asakura Shoten: Tokyo, 278 pp.
- Terayama M.; Onoyama, K. 1999. The ant genus Leptothorax Mayr (Hymenoptera: Formicidae) in Japan. Memoirs of the Myrmecological Society of Japan 1:71-97.
- 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.; Ikudome, S.; Terayama, M. 1999. Identification guide to the Aculeata of the Nansei Islands, Japan. Sapporo: Hokkaido University Press, xii + 831 pp. pp138-317.