Strumigenys fridericimuelleri

Identification
Bolton (2000) - A member of the Strumigenys alberti-group.

Distribution based on Regional Taxon Lists
Neotropical Region: Brazil, Colombia, Costa Rica, Guadeloupe, Guatemala, Honduras, Panama, Paraguay, Peru, Trinidad and Tobago, Venezuela.

Nomenclature

 *  fridericimuelleri. Strumigenys fridericimuelleri Forel, 1886a: 213 (w.) BRAZIL. Combination in S. (Cephaloxys): Emery, 1924d: 325; in Smithistruma: Brown, 1953g: 98; in Pyramica: Bolton, 1999: 1673; in Strumigenys: Baroni Urbani & De Andrade, 2007: 120. See also: Bolton, 2000: 155.

Worker
Bolton (2000) - TL 1.8-2.2, HL 0.50-0.56, HW 0.35-0.39, CI 68-73, ML 0.08-0.11, MI 16-21, 0.25-0.28, SI 69-74, PW 0.24-0.28, AL 0.50-0.72 (20 measured). Masticatory margin of mandible with a basal series of 5 narrow acutely triangular teeth that immediately follow the basal lamella. Distal of these are two smaller but similarly shaped teeth; no long secondary lamella, no alternation of high acute and low rounded teeth. Anterior clypeal margin broadly and very shallowly convex between the points where the outer margins of the closed mandibles intersect the clypeal margin, sometimes almost transverse. Apicoscrobal hair flagellate, long and fine, sometimes looped. Eye with 4 - 5 ommatidia in the longest row. Promesonotum with a variably developed median longitudinal carina. At maximum the carina distinct through entire length of pronotum and most of mesonotum; at minimum conspicuous only posteriorly on pronotum and anteriorly on mesonotum. Dorsum of pronotum partially to mostly smooth, with fine costulate or punctate sculpture, or both, at least posteriorly and dorsolaterally. Petiole node in dorsal view about as broad as long to slightly broader than long, the sides diverging posteriorly. Lateral spongiform lobes of node extending forward almost to the anterolateral angles.

Type Material
Bolton (2000) - Syntype workers, BRAZIL: Itajahy (w. Muller), (examined).