Pachycondyla striatinodis Emery 1890

Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia

worker face view

worker lateral view


Guatemala to Amazonia, Peru. Costa Rica: Atlantic and Pacific slope wet forest (e.g. Corcovado, La Selva), sea level to at least 300m.


Mandible with more than ten teeth; mesosomal dorsum setose; in side view, dorsal outline of mesosoma forms a continuous convexity including mesonotum, metanotum and propodeal dorsum; propodeal groove obsolete or nearly so, and not strongly impressed; a distinct carina runs from the lateral wing of the clypeus near the mandibular insertion to or nearly to the anteromesal quarter of the margin around the eye; propodeal spiracle slit-shaped; acrotergite of second gastral tergum (when exposed) with a distinctly differentiated median stridulatory file with bands of rainbow colors; arolia present; petiolar node as seen from the side with front face rising abruptly to an angular summit at or near the front, from which it descends behind through a broad curve; posterior face of petiolar node coarsely transversely striate over all or most of surface.

Natural History

This species is a very infrequently collected arboreal ant. I know the species from four collections: (1) two workers on a Costus inflorescence in Corcovado National Park; (2) workers on a recent treefall at La Selva; (3) a dealate queen found nesting in a Cecropia sapling internode; and (4) a stray worker from Tortuguero.

Type Data

Pachycondyla striatinodis Emery 1890:75. Syntype worker: Costa Rica, Alajuela (Alfaro) [MCSN] (examined, 1990).

Literature Cited

Emery, C. 1890. Voyage de M. E. Simon au Venezuela (Decembre 1887 - Avril 1888). Formicides. Annales de la Societe Entomologique de France (6) 10:55-76.

Page author:

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

Date of this version: 3 April 1999.
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