Eurhopalothrix bruchi

The only specimens we have seen are the three worker syntypes, which were collected at Alta Gracia by Carlos Bruch from under a stone (Brown and Kempf 1960).

Identification
This is a highly distinctive species that has abundant uniform ground pilosity of broadly spatulate appressed setae, but no specialized setae projecting above it. The ground pilosity uniformly covers the clypeus, face, promesonotum, and first gastral tergite. The posterior face of the propodeum has a longitudinal subrectangular lamella instead of an acute propodeal spine. It is one of the smallest known species, with HW < 0.5. (Longino 2013)

Key to New World Eurhopalothrix

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

Castes
Known only from the worker caste.

Nomenclature

 *  bruchi. Rhopalothrix bruchi Santschi, 1922d: 256 (w.) ARGENTINA. Combination in Eurhopalothrix: Brown & Kempf, 1960: 214.