Polyrhachis laevissima

Identification
Polyrhachis laevissima closely resembles Polyrhachis sulang, but the latter differs in having a distinctly lower and more evenly convex mesosomal profile. They also differ in the configuration of the petiolar spines, with those in Polyrhachis laevissima reduced to obtuse teeth, while the lateral teeth in Polyrhachis sulang are distinctly elongate. The legs in Polyrhachis laevissima are distinctly light red, while in Polyrhachis sulang the legs are darker with black coxae. (Kohout 2006)

Distribution
Polyrhachis laevissima is distributed from Myanmar and India to Thailand, Malaysia, Sumatra and Java, with more recent records from Borneo (Maliau Basin, Sabah).

This taxon was described from Myanmar.

Worker
Length 2-1/4 lines. Black, smooth and shining, with the coxae, femora and tibiae ferruginous. Head large, wider than the thorax, the latter widest in front, gradually narrowed to the apex of the metathorax; the anterior margin of the thorax rounded, the lateral angles acute, the disk very convex, the metathorax oblique. The scale of the peduncle incrassate, subquadrate, the superior margin notched in the middle, the lateral angles produced and acute. Abdomen globose.

Type Material
Holotype worker from  examined by Kohout (2006).

Type Locality Information
MYANMAR (= Burma), col. Waring.