Strumigenys metopia

Identification
Bolton (2000) - The minute metopia is the only known species of the crassicornis-complex to possess flagellate hairs on the alitrunk.

Distribution based on Regional Taxon Lists
Neotropical Region: Brazil, Colombia, Ecuador, Panama, Peru.

Nomenclature

 *  metopia. Neostruma metopia Brown, 1959b: 11, fig. 2 (q.) PANAMA. Kempf, 1975a: 417 (w.). Combination in Pyramica: Bolton, 1999: 1672; in Strumigenys: Baroni Urbani & De Andrade, 2007: 124. See also: Bolton, 2000: 190.

Worker
Bolton (2000) - TL 1.5-1.6, HL 0.40-0.41, HW 0.29-0.31, CI 72-75, ML 0.12-0.13, MI 30-31, SL 0.17-0.19, SI 60-63, PW 0.20-0.22, AL 0.38-0.40 (4 measured). Characters of crassicornis-complex. Submedian tooth of mandible strongly developed; 3 minute denticles distal of submedian tooth and 2 proximal of it. Scape expanded at subbasal angle (similar to development seen in Strumigenys crassicornis but not as extensive), the scape distinctly broadest at this point, tapering to apex. Apicoscrobal hair curved and elongate. Pair of standing hairs on cephalic dorsum close to occipital margin may be only weakly differentiated from the conspicuous spatulate ground-pilosity. Pronotal humeral hair long and flagellate. Mesonotum with a single pair of long flagellate hairs. Postpetiole in profile swollen, subglobular; spongiform lobes very reduced.

Type Material
Holotype queen (dealate), PANAMA: Barro Colorado Island, 1938, no. 871 (N.A. Weber) (examined).

Additional References

 * Baroni Urbani, C. & De Andrade, M.L. 2007. The ant tribe Dacetini: limits and constituent genera, with descriptions of new species. Annali del Museo Civico di Storia Naturale “G. Doria” 99: 1-191.
 * [[Media:Brown 1959b.pdf|Brown, W. L., Jr. 1959b. A revision of the dacetine ant genus Neostruma. Breviora 107: 1-13 PDF]]