Strumigenys trixodens group

Strumigenys trixodens group Bolton (2000)

Worker Diagnosis
Apical fork of mandible of 3 long spiniform teeth in a vertical series; without intercalary denticles and without preapical dentition. MI 53-56.

Anterior clypeal margin extremely shallowly evenly concave, almost transverse.

Scape slightly dorsoventrally flattened, broadest in apical third of its length. SI 77-85.

Apical antennomere not constricted basally.

Ventrolateral margin of head with a broad but shallow preocular impression. With head in profile the ventral outline with a broad shallowly concave impression behind the level of the eye; margin between this and postbuccal groove shallowly convex.

Propodeal teeth free; margin of declivity with a thin carina.

Spongiform appendages of waist segments all present; lateral lobe of petiole in profile small and posterior.

Pilosity. Pronotal humeral hair remiform, not strongly differentiated from the other main pilosity of the dorsal alitrunk. Apicoscrobal hair absent. First gastral tergite with flagellate hairs but such hairs not present on head or alitrunk where the main pilosity is remiform or long-spatulate. Hind tibia and basitarsus with very long suberect projecting hairs.

Sculpture. Reticulate-punctate on head and alitrunk dorsally, with extensive smooth areas on side of the latter. Gaster un sculptured except for basigastral costulae.