Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia
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Image of petiole.
Range
Costa Rica: Atlantic lowlands.
Identification
When mandibles are in their usual resting position, with tips crossed, they project beyond anterior border of clypeus, leaving a distinct gap; clypeus reduced, leaving labrum largely exposed; hypostomal teeth reduced, barely or not visible in full-face view; head subquadrate, not narrowed posteriorly; face smooth and shining; dorsal and posterior faces of petiole meeting at an acute angle, forming a posteriorly directed tooth; legs and scapes orange, contrasting with the dark brown head and mesosoma.
Natural History
I have 7 collections of this species from La Selva Biological Station, and 2 from Tortuguero. I have seen two nests, one in dead wood on the ground, and another in the crown debris of a small "basket' palm. The latter contained isopod remains. I have also collected males from blacklight sheets. Other collections have been stray workers on the ground.
Notes
I compared this species with material at the MCZC. It was close to punctaticeps, mucronatus, and pubiceps, but did not match any of them.
Page author:
John T. Longino, The Evergreen State College, Olympia WA 98505 USA. longinoj@evergreen.edu
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