Trachymyrmex zeteki Weber 1940

Attini, Myrmicinae, Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia

worker face view

worker lateral view


Ecuador, Panama (type locality), Costa Rica. Costa Rica: scattered localities.


Preorbital carina sinuous or straight, extending past eye and directed toward posterolateral vertex margin; in face view with distinct lateral and posterolateral tubercles, such that margins of head behind eye are not rounded; anterior pair of mesonotal spines conical, stout; frontal lobes evenly rounded.

Natural History

Weber (1940) described a nest from Barro Colorado Island, Panama. The single nest chamber was 67mm deep.

I know this species from few collections. At La Selva Biological Station, Eli Sarnat collected it in a rotten log, and a worker was collected in one canopy fogging sample. Workers have been taken in Winkler samples, and a worker was collected in a Malaise sample from the 300m site on the Barva Transect. At Refugio Eladio in Penas Blancas, an 800m site east of Monteverde, I found a nocturnal forager on the ground. I have a worker from Sirena in Corcovado National Park, but no other biological data.


The species is fully described in MayhŽ-Nunez and Brand‹o (2007).

Literature Cited

MayhŽ-Nunes, A. J., and C. R. F. Brand‹o. 2007. Revisionary studies on the attine ant genus Trachymyrmex Forel. Part 3: The jamaicensis group (Hymenoptera: Formicidae). Zootaxa 1444:1-21.

Weber, N. A. 1940. The biology of the fungus-growing ants. Part VI. Key to Cyphomyrmex, new Attini and a new guest ant. Revista de Entomologia (Rio de Janeiro) 11:406-427.

Page author:

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

Date of this version: 7 May 2007.
Previous versions of this page: 13 January 2004
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