Dorylus labiatus

These are highly subterranean ants that are rarely seen above ground. They are most commonly seen foraging on the surface only after heavy rains.

Identification
HW 1.13-2.30 mm. A large, polymorphic species. Antenna always 11-segmented. Concolorous brownish yellow. Very similar to Dorylus fulvus. (Wilson 1964)

Distribution based on Regional Taxon Lists
Oriental Region: Bangladesh, India, Nepal, Sri Lanka. Palaearctic Region: China.

Nomenclature

 *  labiatus. Dorylus labiatus Shuckard, 1840c: 319 (m.) INDIA. Forel, 1901a: 464 (w.). Combination in D. (Typhlopone): Emery, 1895j: 724. Possible junior synonym of juvenculus: Dalla Torre, 1893: 11. Subspecies of fulvus: Emery, 1895j: 724. Revived status as species: Forel, 1901a: 464; Bingham, 1903: 2. Senior synonym of hindostanus: Emery, 1895j: 724; of laeviceps: Forel, 1901a: 464. See also: Bingham, 1903: 2; Wilson, 1964a: 440.
 * hindostanus. Dorylus hindostanus Smith, F. 1859b: 3, pl. 1, fig. 1, 16 (m.) INDIA. Possible junior synonym of juvenculus: Dalla Torre, 1893: 12. Junior synonym of labiatus: Emery, 1895j: 724; Bingham, 1903: 2.
 * laeviceps. Dorylus (Typhlopone) laeviceps Smith, F. 1878b: 13, fig. 2 (w.) INDIA. Junior synonym of fulvus: Emery, 1895j: 723; of labiatus: Forel, 1901a: 464; Wilson, 1964a: 440.