Aenictus pachycerus

Identification
A member of the pachycerus group.

Key to Aenictus species groups

Distribution
This taxon was described from India. It is also found in Sri Lanka.

Nomenclature

 *  pachycerus. Eciton pachycerus Smith, F. 1858b: 153 (w.) "South America ?" (in error; type-locality INDIA, see Bingham, 1903: 21). Bharti, 2003a: 715 (q.). Combination in Aenictus: Dalla Torre, 1893: 8. Senior synonym of bengalensis: Bingham, 1903: 20; of continuus: Wilson, 1964a: 471.
 * bengalensis. Typhlatta bengalensis Mayr, 1879: 669 (w.) INDIA. Combination in Aenictus: Dalla Torre, 1893: 7. Junior synonym of pachycerus: Bingham, 1903: 20.
 * continuus. Aenictus bengalensis var. continuus Forel, 1901a: 476 (w.) SRI LANKA. Junior synonym of pachycerus: Wilson, 1964a: 471.

Worker
Wilson (1964) - Syntypes: HW 0.71 mm, HL 0.82mm, SL 0.63mm; HW 0.71 mm, HL 0.83mm, SL 0.65 mm. Antenna 10-segmented. Mandible typical. Clypeus strongly convex, entire, unarmed. Parafrontal ridge very distinct, 0.3 mm in length, in side view forming a prosalient lobe. Occiput weakly convex, lacking collar. Propodeal junction acutely angulate. Subpetiolar process a large, evenly rounded lobe which projects slightly forward. Pilosity moderately abundant and relatively long; length of longest pronotal hairs 0.28 mm.

Head everywhere weakly microreticulate, the reticular diameters about 0.01 mm; vertex, area immediately surrounding parafrontal ridges, and clypeus subopaque; remainder of head feebly shining; mesosoma and pedicel entirely microreticulate, with reticular diameter about 0.01 mm; body everywhere opaque, except over most of pronotal dorsum, which is feebly shining. Concolorous medium reddish brown.