Bolton noted that nests contained more than one dealate queen. Specimens have been collected in rainforest from dead twigs.
- With head in full-face view the occipital margin conspicuously concave, the sides of the head convex. (Singapore; East Malaysia: Sarawak) . . . . . Rotastruma recava
- With head in full-face view the occipital margin more or less transverse, the sides of the head approximately straight. (China: Guangdong) . . . . . Rotastruma stenoceps
Distribution based on Regional Taxon Lists
Distribution based on AntMaps
Distribution based on AntWeb specimens
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The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- recava. Rotastruma recava Bolton, 1991: 9, figs. 12, 14 (w.q.) BORNEO.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Holotype. TL 3.6, HL 0.80, HW 0.69, CI 86, SL 0.56, SI 81, PW 0.48, AL 0.94. Maximum diameter of eye 0.24 (0.35 x HW). Mandibles finely longitudinally striolate. Central strip of dorsum of head with a number of longitudinal costulae which may run the length of the head or may be broken or interrupted. Occipital margin distinctly concave in full-face view, the sides of the head in front of the large eyes convex. Median portion of clypeus with 3 longitudinal carinae. Dorsal alitrunk with predominantly longitudinal sharp rugulae; cross-meshes present, especially on pronotum. Sides of alitrunk marginate, margination sharpest on mesonotum and propodeum. Propodeal spines long, depressed and down-curved along their length. Sides of alitrunk with weak longitudinal rugulae. Petiole and postpetiole rugulose to reticulate-rugulose dorsally. First gastral tergite unsculptured except for sparse short basi gastral costulae and feeble superficial reticular patterning. Standing hairs present on all dorsal surfaces, short fine and acutely pointed. Colour yellow, the first gastral tergite with a broad brown band.
Paratype. TL 3.6-4.0, HL 0.80-0.84, HW 0.66-0.70, CI83-86, SL 0.56-0.60, SI 81-86, PW 0.48-0.52, AL 0.94-1.02. Maximum diameter of eye 0.24-0.26 (0.35-0.37 x HW) (10 measured). As holotype.
Paratype. TL 3.9-4.0, HL 0.80-0.81, HW 0.69-0.70, CI 85-86, SL 0.54-0.56, Sl 78-81, PW 0.56-0.58, AL 1.08-1.12. Maximum diameter of eye 0.26-0.28 (0.37-0.40 x HW) (4 measured). The females are small, only the same size as the workers or slightly larger. Alate when virgin and with a complete complement of flight sclerites.
Holotype worker, East Malaysia: Sarawak, 4th Division G. Mulu NP, 22.v.1978, mixed dipterocarp forest, on tree (N. M. Collins) (The Natural History Museum).
Paratypes, 18 workers and 2 females, Singapore: Bukit Timah Forest, 15.iii.1973 (D. H. Murphy); 2 workers and 2 females, Bukit Timah, 100 m, 8.iv.1989, no. 10254, ex dead twig, vine, rainforest (P. S. Ward) (BMNH; Museum of Comparative Zoology; Musee d'Histoire Naturelle Genève).
- Bolton, B. 1991. New myrmicine genera from the Oriental Region (Hymenoptera: Formicidae). Syst. Entomol. 16: 1-13 PDF (page 9, figs. 12, 14 worker, queen described)