Strumigenys longispinosa

Identification
Bolton (2000) - Closely related to Strumigenys incuba and like that species having the postpetiole and gaster unsculptured. However, incuba is larger, has only a single pair of erect hairs on the cephalic dorsum, and has gastral hairs that are not flagellate.

Distribution based on Regional Taxon Lists
Neotropical Region: Costa Rica, Ecuador, Panama, Peru.

Nomenclature

 *  longispinosa. Strumigenys longispinosa Brown, 1958e: 123, figs. 1, 2 (w.) PANAMA. [Strumigenys longispinosa Weber, 1952b: 3; unavailable name, attributed to Brown.] See also: Bolton, 2000: 542.

Worker
Bolton (2000) - TL 2.8-3.3, HL 0.67-0.82, HW 0.50-0.62, CI 72-76, ML 0.58-0.72, MI 83-90, SL 0.58-0.70, SI 113-120, PW 0.28-0.36, AL 0.66-0.80 (8 measured).

Cephalic dorsum with 2 pairs of erect simple hairs, one near highest point of vertex, the other close to the occipital margin. Flagellate hairs present: in apicoscrobal position; at pronotal humerus; a pair on mesonotum; a few on waist segments; numerous on first gastral tergite. Ventral spongiform strip on petiole narrow, often incomplete, broken or partially absent. Mesopleuron smooth, metapleuron and side of propodeum lightly punctulate at least in part. Propodeal spines long and slender, subtended by a narrow concave carina. Petiole node longer than broad in dorsal view. Disc of postpetiole mostly or entirely smooth, never completely traversed by costulae nor densely reticulate-punctate. First gastral tergite smooth behind basigastral costulae.

Type Material
Bolton (2000) - Holotype and paratype workers, PANAMA: Canal Zone, Barro Colorado Island, 10.vii.1939, No. 1139 (N. A. Weber); paratypes PANAMA: Barro Colorado Island, No. 65-2 (E. C. Williams); Quipo (J. Zetek) [examined].