Strumigenys elongata group

Strumigenys elongata group Bolton (2000)

Neotropical-Nearctic

 * Strumigenys consanii
 * Strumigenys elongata
 * Strumigenys nageli De Andrade 2007
 * Strumigenys pariensis
 * Strumigenys spathula
 * Strumigenys tachirensis

Worker Diagnosis
Apical fork of mandible without trace of intercalary teeth or denticles. Mandible without trace of preapical dentition of any form. MI 55-63.

Leading edge of scape with two or more hairs curved or directed toward the base of the scape. Scape slender, subcylindrical, the subbasal curve shallow; moderate to long, SI 84-97.

Preocular carina in profile straight, running above eye and usually terminates at about level of midlength of eye, but may be slightly longer or shorter.

Ventrolateral margin of head not indented nor deeply concave in front of eye, at most very shallowly concave. Postbuccal groove obtuse and shallow.

Propodeum with slender short spines sub tended by a carina or narrow concave lamella on the declivity; without a sharp tooth or spine at base of declivity although a small rounded lobe may occur.

Ventral surface of petiole without a spongiform crest or curtain, or at most with a minute lobe posteroventrally; a cuticular carina may be present.

Pilosity. Pronotal humeral hair present, usually flagellate but sometimes filiform. Ground pilosity of head and alitrunk of curved spatulate hairs. Apicoscrobal hair present. Cephalic dorsum with one or two pairs of standing hairs, always a pair near the occipital margin. Mesonotum with a pair of standing hairs.

Sculpture. Head and alitrunk reticulate-punctate; a smooth area present on mesopleuron, metapleuron or both. First gastral tergite smooth behind basigastral costulae.