Strumigenys infidelis

Identification
Bolton (2000) - Material of this species is sparse. S. infidelis has the same preapical dentition and the deep narrow postbuccal groove seen in Strumigenys louisianae, but lacks the flagellate humeral hairs of that species. For this reason I have revived infidelis from the synonymy of louisianae where Brown (1962b) left it.

Distribution based on Regional Taxon Lists
Neotropical Region: Argentina, Bolivia, Brazil, Venezuela.

Nomenclature

 *  infidelis. Strumigenys infidelis Santschi, 1919f: 48 (w.) ARGENTINA. Junior synonym of louisianae: Brown, 1953g: 28; revived from synonymy: Bolton, 2000: 523.

Worker
Bolton (2000) - TL 2.0-2.2, HL 0.50-0.54, HW 0.44-0.46, CI 85-88, ML 0.28-0.29, MI 52-56, SL 0.29-0.31, SI 66-67, PW 0.24-0.27, AL 0.52-0.55 (3 measured).

Mandible without a denticle proximal to the preapical tooth. With head in profile postbuccal groove narrow and deeply incised. Apicoscrobal hair short and stiff, remiform. Cephalic dorsum with a single pair of short standing hairs, close to occipital margin. Pronotal humeral hair narrowly remiform; mesonotal standing hairs remiform, broader than humeral hairs. Ventral surface of petiole without trace of spongiform tissue.

Type Material
Bolton (2000) - Syntype workers, ARGENTINA: La Plata (Bruch) [examined].