A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group. Author Longino, J. T. text Zootaxa 2007 1491 1 63 http://www.antbase.org/ants/publications/21311/21311.pdf journal article 21311 C31A1226-724D-4D1A-8471-E6BB441EE3EF Azteca aurita Emery 1893 Azteca aurita Emery 1893:346. Holotype queen: Brazil , Para , Braganza ( Oberthuer ) [ MCSN ] (examined). Azteca lacrymosa Forel 1899:116 (part). Syntype workers: Costa Rica (Tonduz); and Colombia , Sierra Nevada de Santa Marta, Hac. la Esperanza ( Lallemand, Forel ) [ MHNG , MCZC ] (examined; Costa Rican series is A. pilosula , Colombian series is A. aurita ). Incorrect synonymy under A. aurita Emery : Forel 1906:237. Azteca lacrymosa race silvae Forel 1899:116. Syntype workers: Brazil , Amazonas , Para ( Goeldi ) [ MHNG , MCZC ] (examined). NEW SYNONYMY Azteca aurita r. silvae Forel : Forel 1906:237. Queen characters. Measurements (n=2): HLA 1.28 (1.25-1.30), HW 1.11 (1.10-1.11), SL 1.21 (1.18-1.24), CI 87 (85-88), SI 95 (94-95). Palpal formula 4,3; middle and hind tibia lacking apical spur; mandible strongly flattened, apical tooth much longer than penultimate tooth; medial clypeal lobe strongly convex and protruding, extending well beyond lateral clypeal lobes; head quadrate, sides flat and diverging posteriorly, posterior margin strongly angulate laterally, deeply excavate medially; petiolar node short, broadly triangular; scape, mandible, lateral margin of head anterior to compound eye, and legs covered with uniform vestiture of short, dense, white pilosity; lateral margin of head posterior to eye, posterior margin of head, mesosomal dorsum, petiolar dorsum, and gaster lacking erect setae; entire body orange, with smooth, highly polished and reflective surface. Worker characters. Measurements (n=2): HLA 1.22 (1.11-1.32), HW 1.21 (1.11-1.30), SL 1.11 (1.03- 1.19), CI 99 (98-100), SI 92 (90-93). Currently indistinguishable from A. pilosula . Range. Brazil, Colombia. Additional material examined. BRAZIL : Para : Santarem - worker [ MHNG ] ; Para ( W. M. Mann ) [ LACM ] ; COLOMBIA : no specific locality ( Santschi coll.) - queen [ NHMB ] ; Magdalena : Esperanza ( Forel ) - workers, headless queen [ MHNG ] [ A. lacrymosa syntypes ] .