Neivamyrmex macrodentatus (Menozzi 1931)

Ecitoninae, Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia

worker face view

worker lateral view

Additional images: worker dorsal view (large, small); mandible (large, small); small worker (large).


Costa Rica (type locality).


Posterior face of propodeum straight, not concave, as long or longer than dorsal face; eye completely absent; apex of scape does not exceed middle of face; anteroventral tooth of petiole large and triangular; basal tooth of mandible of major enormous; mesosoma of largest worker less than 1.2 mm long.

Natural History

The type specimens of this species are from Apaic‡n, Volcan Irazœ. Borgmeier (1955) examined a second collection by Schmidt from San JosŽ.

I know this species from one collection. I found a column of workers beneath a stone at the edge of a gravel road. The habitat was an open pasture area that had been recently burned. The locality was the San Luis Valley, on the Pacific slope just below Monteverde, at 1050m elevation. The collection was made in the middle of a hot day. The smallest workers of this species were remarkably tiny, about the size of small Diplorhoptrum Solenopsis.

Page author:

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

Date of this version: 14 July 2005.
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