Crematogaster uruguayensis

Identification
Longino (2003) - A Crematogaster crinosa-complex species, C. uruguayensis requires further taxonomic study. There are two syntype workers of uruguayensis on a pin at NHMB, and I compared them to a syntype of Crematogaster sericea. They are a bit darker than the types of sericea, and the setal pattern on the fourth abdominal tergite is more like Crematogaster torosa than crinosa.

Distribution based on Regional Taxon Lists
Neotropical Region: Argentina, Uruguay.

Nomenclature

 *  uruguayensis. Crematogaster atra st. uruguayensis Santschi, 1912e: 527 (w.) URUGUAY. Raised to species: Longino, 2003a: 129.

Description
Longino (2003) - Syntype workers: Uruguay, Colonia Nueva Helvecia (von Steiger) {NHMB}} (examined).