| Recurvidris recurvispinosa|
Recurvidris recurvispinosa is the most widely distributed member of the genus. In Thailand it occurs in areas north of the Isthmus of Kra and in various types of forest such as dry evergreen forest, mixed deciduous forest and dry dipterocarp forest. (Jaitrong and Wiwatwitaya 2015)
Jaitrong and Wiwatwitaya (2015) - Recurvidris recurvispinosa is closely related to Recurvidris hebe (Sulawesi) in having 4-dentate mandibles, and the basal mandibular tooth being enlarged and bidenticulate apically. R. recurvispinosa differs from R. hebe in the following points: in profile propodeal spine and petiolar peduncle relatively short and stout (relatively long and narrow in R. hebe); with head in full-face view, occipital corners round (more broadly round in R. hebe); mesosoma finely reticulate-punctate to reticulate-granular (superficially sculptured in R. hebe).
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The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- recurvispinosa. Trigonogaster recurvispinosus Forel, 1890b: cix, fig. (w.) INDIA. Wheeler, W.M. 1927d: 5 (m.). Combination in Recurvidris: Bolton, 1992: 46. See also: Sheela, et al. 2000: 95.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Jaitrong and Wiwatwitaya (2015) - (n = 15). TL 1.70-1.85 mm, HW 0.36-0.41 mm, HL 0.41-0.43 mm, SL 0.33-0.35 mm, PW 0.21-0.25 mm, ML 0.53-0.54 mm, CI 85-96, SI 87-95.
Head in full-face view narrow, subreticular and slightly longer than broad, with posterior margin almost straight or feebly concave. Eye 0.10 mm in maximum diameter, with 6-7 ommatidia along longest axis. Antennal scape extending posteriorly slightly beyond posterolateral corner of head. Masticatory margin of mandible with four sharp teeth, fourth (basal) tooth enlarged and bidenticulate; basal margin of mandible unarmed. Propodeal spine stout, upcurved. Clypeus with distinct paired carinae, its anterior margin weakly convex. Mesosoma relatively slender; promesonotum in profile weakly convex dorsally and sloping gradually to metanotal groove. Propodeum in profile with feebly convex dorsal outline; recurved propodeal spine long and narrow. Propodeal declivity with infradental lamella or ridge linking propodeal spine to metapleural lobe. Peduncle of petiole relatively short, with its dorsal outline distinctly concave and ending posteriorly in blunt angle, its ventral outline convex. Subpetiolar process varying from a tooth to short spine.
Dorsa of head and mesosoma usually finely reticulate-punctate to reticulate-granular; on head the sculpture usually weaker on dorsum behind frontal lobes, and stronger posteriorly and laterally. Sculpture on pronotum much weaker than that on head. Petiole finely reticulate. Postpetiole superficially reticulate. Gaster smooth and shiny.
Head with relatively sparse short hairs; promesonotum with sparse short hairs (less than ten hairs); longest pronotal hairs 0.07 mm long. Hairs absent from propodeal dorsum. Petiole with two dorsal pairs of short hairs. Postpetiole with two dorsal pairs and one ventrolateral pair of short hairs. Body colour yellow to yellowish brown.
Jaitrong and Wiwatwitaya (2015) - Syntype workers from India, Poona (R.C. Wroughton) (Musee d'Histoire Naturelle Genève).
- Bolton, B. 1992b. A review of the ant genus Recurvidris (Hym.: Formicidae), a new name for Trigonogaster Forel. Psyche (Camb.) 99: 35-48 (page 46, Combination in Recurvidris)
- Forel, A. 1890b. Fourmis de Tunisie et de l'Algérie orientale. Ann. Soc. Entomol. Belg. 34:lxi-lxxvi. (page cix, fig. worker described)
- Jaitrong, W. and Wiwatwitaya, D. 2015. The species of the ant genus Recurvidris Bolton, 1992 in Thailand. Halteres. 6:104-112.
- Sheela, S.; Narendran, T. C.; Tiwari, R. N. 2000. Redescription of a little known Myrmicine ant Recurvidris recurvispinosa (Forel) (Hymenoptera: Formicidae). Rec. Zool. Surv. India 98(2): 93-98 (page 93, redescription)
- Wheeler, W. M. 1927d. Chinese ants collected by Professor S. F. Light and Professor N. Gist Gee. Am. Mus. Novit. 255: 1-12 (page 5, male described)