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genus
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Recurvidris
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Japanese Name
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Kakubara-ari-zoku
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Original Reference
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Bolton, B. (1992) A review of the ant genus Recurvidris, a new name for Trigonogaster Forel. Psyche 99: 35-48.
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Description
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Small ants: total length of workers around 2 - 3 mm. Head long, with an occipital collar. Clypeus with a pair of longitudinal carinae. Antennae 11-segmented, the apical 3 segments forming a club. Palpal formula 4:3 or 5:3. Mandibles triangular, with 4 or 5 teeth; apical tooth the most strongly developed, acute. Promesonotal dorsum convex in profile. Propodeal spines slender; curved anteriorly in lateral view. Subpetiolar process present. Postpetiole broadened posteriorly in dorsal view. Gaster triangular, with a flat dorsal surface and convex ventral profile.
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Remarks
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The former genus name, Trigonogaster, was shown to be preoccupied but was not replaced by Brown (1973). Wheeler & Wheeler (1985), Hoelldobler & Wilson (1990) and Bolton (1994) assigned Trigonogaster to tribe Pheidologetini, following Emery (1922) but not Ettershank (1966). In a revision of the genus in 1992 Bolton assigned the new generic name Recurvidris, and recognized 8 species. The genus was nominated as Trigonogaster in Myrmecological Society of Japan Editorial Committee (1988, 1992). The sole Japanese species known from the Yaeyama Islands, was then treated as Trigonogaster sp., but was identified as Recurvidris recurvispinosa by Bolton (1992). Recurvidris is restricted to the Oriental region. For many years R. recurvispinosus alone was recognized, until Kugler (1986) reported that three or more additional species were represented in collections.
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References
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- Brown, W. L., Jr. (1973). A comparison of the Hylean and Congo-West African rain forest ant faunas. InIn B. J. Meggers, E. S. Ayensu & W. D. Duckworth, eds., "Tropical Forest Ecosystems in Africa and South America: A Comparative Review" (pp. 161-185). Smithsonian Institution Press, Washington.
- Wheeler, G. C. & J. Wheeler (1985). A simplified conspectus of the Formicidae. . Trans. Am. Ent. Soc., 111, 255-264.
- Hoelldobler, B. & E. O. Wilson (1990). The ants. . , 732.
- Emery, C. (1922). Hymenoptera, fam. Formicidae, subfam. Myrmicinae. . In P. Wytsman, ed., ""Genera Insectorum"", fasc. , 174B-C, 95-397, .
- Etterschank, G. (1966). A generic revision of the world Myrmicinae related to Solenopsis and Pheidologeton (Hymenoptera: Formicidae). . Aust. J. Zool. , 14, 73-171.
- Myrmecological Society of Japan, Editorial Committee (ed.) (Ed.). (1988). A list of the ants of Japan with common Japanese names. The Myrmecological Society of Japan, Tokyo.
- Myrmecological Society of Japan, Editorial Committee (ed.) (1992). A guide for the identification of Japanese ants (III). Myrmicinae and supplement to Leptanillinae (Hymenoptera: Formicidae). The Myrmecological Society of Japan, Tokyo.
- Bolton , 1992
- Kugler, C. (1986). Sting of ants of the tribe Pheidologetini (Myrmicinae). . Insecta Mundi, 1, 221-230.
- Bolton, B. (1994). Identification guide to the ant genera of the world. Harvard University Press, 222 pp.
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Editor
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Original text by Mamoru Terayama, Keiichi Onoyama and Masao Kubota. English translation by Mamoru Terayama, edited by Robert W. Taylor.
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