Camponotus daitoensis

This is an arboreal species which nests in dead twigs on trees. Coloration of 2nd gastral tergite varies from uniform black to with a pair of small yellow spots. (Terayama 1999)

Identification
Terayama (1999) - Total length around 4 mm in mmor workers, and 5.5 -6 mm in major workers. In major workers: head, mesosoma, and legs reddish brown; 1st gastral tergite yellowish brown excepting posterior margin blackish brown to black; 2nd to terminal segments blackish brown to black (2nd tergite with a pair of small yellow spots in a few individuals). Dorsum of mesosoma moderately convex in profile; pronotal dorsum with several relatively short erect hairs; mesonotal dorsum with 4-6; propodeum with more than 10 erect hairs; petiolar scale thin and high. In minor workers: head, mesosoma, and legs light yellowish brown; coloration of gaster as in major worker.

Distribution based on Regional Taxon Lists
Palaearctic Region: Japan.

Nomenclature

 *  daitoensis. Camponotus (Myrmamblys) daitoensis Terayama, 1999b: 41, figs. 31-34 (s.w.) JAPAN.

Worker
Holotype worker: HL 1.60 mm; HW 1.60 mm; 8L 1.28 mm; CI 100; 8180; WL 1.90 mm; PW 1.00 mm; P8L 0.23 mm; PH 0.63 mm; DPW 0.50 mm; TL 6.3 mm. Head as long as wide, with almost straight posterior margin in full face view; posterodorsal corner forming a blunt angle. Mandible with 5 teeth. Anterior margin of clypeus straight, without a median notch. Antennal scape exceeding posterior margin of head by 1/5 its length in full face view. Eye 0.35 mm in maximum diameter. Dorsum of pronotum moderately convex in profile; mesonatal and propodeal dorsum largely straight; posterodorsal corner of propodeum bluntly angulate. Petiolar scale thin and high; in dorsal view 0.5 times as long as wide. Pronotal dorsum with several relatively short erect hairs; mesonotal dorsum with 4-6; propodeum with more than 10 erect hairs; gastral tergites each with 2 rows of erect hairs; short suberect hairs abundant on lower 1/3 of head. Head, mesosoma, and legs reddish brown; 1st gastral tergite yellowish brown excepting posterior margin blackish brown to black; 2nd to terminal segments blackish brown to black.

Minor worker. HL 1.10 mm; HW 0.95 mm; 8L 1.30 mm; CI 86; 81 137; WL 1.55 mm; PW 0.75 mm; P8L 0.18 mm; PH 0.51 mm; DPW 0.40 mm; TL 4.2 mm (A paratype from the same nest as holotype measured). Head oval, slightly longer than wide, with convex posterior margin in full face view; posterodorsal corner rounded, not angulate. Mandible with 5 teeth. Anterior margin of clypeus weakly convex. Antennal scape exceeding posterior margin of head by 1/3 its length in full face view. Eye 0.30 mm in maximum diameter. Dorsal outline of mesosoma moderately convex; posterodorsal corner of propodeum bluntly angulate in profile. Petiolar scale thin and high. Pronotal dorsum without hairs; mesonotal dorsum with a pair of erect hairs; propodeum with about 12 erect hairs; gastral tergites each with 2 rows of erect hairs. Head, mesosoma, and legs light yellowish brown; coloration of gaster as in major worker.

Type Material
Holotype. Major worker, Minami-daito-jima, Okinawa Pref., 24. VI. 1975, H. Takamine leg. Paratypes. 10 major workers, 17 minor workers, same data as holotype.

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. 1999. The ant genus Camponotus Mayr (Hymenoptera: Formicidae) in Japan. Memoirs of the Myrmecological Society of Japan 1:25-48.
 * 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.