Diagnosis. Metapleural gland orifice narrowly opening
(all female castes). Petiole longer than high, slightly longer
than broad, and flattened in anterior half (queen). Head in
full-face view only slightly longer than broad (queen). Mandible
with 5 teeth including apical and basal ones; 4th tooth
smallest (queen). Upper portion of katepisternum punctate,
shiny, with sparse short fine hairs (queen). Petiolar node as
seen in profile thick, with nearly parallel anterior and posterior
slopes and rounded apex (minor and major workers).