Pachycondyla guianensis (Weber 1939)

Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia

worker face view

worker lateral view


Costa Rica to southern Brazil. Costa Rica: Atlantic lowlands (La Selva).


Mesosomal dorsum setose; no carina between mandible and eye; propodeal spiracle circular, not slit-shaped; mesotibia with stout setae along outer margin; worker eyeless; mandible subfalcate; color orange.

Natural History

This species may have a restricted distribution in Costa Rica; I know it only from La Selva Biological Station. The distinctive bright orange alate queens are fairly common, being taken in malaise traps, sweeping, etc. Henry Hespenheide captured a queen and a male as prey of robber flies (Asilidae). The distinctive workers are only rarely encountered, in Berlese or Winkler samples. Given the eyeless condition, I would guess this species is largely subterranean. Subterranean ants are difficult to sample, and thus this species may be more common than collections suggest.

Type Data

Wadeura guianensis Weber 1939:103. Syntype worker, queen: Guyana, Oronoque River.

Literature Cited

Weber, N. A. 1939. New ants of rare genera and a new genus of Ponerine ants. Ann. Entomol. Soc. Am. 32:91-104.

Page author:

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

Date of this version: 3 April 1999.
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