Sericomyrmex harekulli arawakensis ^HNS, subsp. nov.

(Fig. 11)

Worker: Length 3.4-5 mm. - Proportions of head much as in typical harekulli ^HNS but antennal scapes slightly longer, failing to reach occipital angles by a distance equal to their distal diameters rather than about twice the diameter. Terminal joint of funiculus equal to joints 7-9 taken together. Thorax and pedicel in profile as illustrated (Fig. 11). Color a paler ferruginous.

Female: Length 5.4-5.7 mm. - Head, excluding mandibles, 0.86 as long as wide. Antennal scapes failing to reach occipital corners by a distance less than their distal diameters.

Epinotal declivity with low, rounded tubercles. First gastric segment distinctly marginate laterally. Wings infuscated, veins pale brown margined by darker brown.

Described from a colony taken by myself August 16, 1935, near the Forest Settlement, Mazaruni River, British Guiana. Entrance to the nest was in the form of a crater beneath which were three chambers containing pendant fungus gardens to be described in a subsequent paper.