Brachymyrmex JTL-010 Longino ms.

Formicinae, Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia

worker face view

worker lateral view


Costa Rica: Peľas Blancas, Tortuguero, La Pita on road to Monteverde, Hitoy Cerere.


Face smooth, with short erect setae; scapes barely reach vertex margin; mesosoma with no erect setae; first gastral tergite with abundant appressed pubescence, no erect setae; metanotal groove weakly impressed; color light brown to dirty yellow; see JTL-005.

Natural History

I know this species from relatively few collections. I collected it in Winkler samples of sifted leaf litter from Hitoy Cerere and Peľas Blancas (Refugio Eladio), both wet forest sites. I also collected workers in a sweep sample of low vegetation at La Pita along the road to Monteverde. This was scrubby roadside vegetation in a highly seasonal and agricultural landscape. Mary Cornelius, an OTS student, did field project at Tortuguero, sampling ants from domatia on Tococa leaves. One domatium contained a nest of this species, with queen and males.

Page author:

John T. Longino, The Evergreen State College, Olympia WA 98505

Date of this version: 14 July 2004.
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