Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia
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Identification
Minor worker: head length 0.80mm, head width 0.59mm, scape length 1.07mm, Webers length 1.04mm (n=1). In full face view, posterior margin of vertex elongate, subtrapezoidal; narrow vertex collar; promesonotal suture weakly impressed; metanotal groove well impressed, deep and broad; propodeal spines short; face foveolate, overlain with weak rugae, anteromedian patch smooth and shiny; mesosoma largely foveolate, trough of metanotal groove shiny with regularly-spaced longitudinal rugae, shiny trough extending lateroventrally, separating propodeum and episternum; gaster foveolate/shagreened anteriorly, fading to smooth and shiny posteriorly; dorsal pilosity abundant, erect, moderately long, some of the mesosomal setae branched at apex; color orange.
Major worker: head length 1.44mm, head width 1.30mm, scape length 1.01mm (n=1). Face punctatorugose throughout, rugae longitudinal and more or less evenly spaced; hypostomal margin with pair of large, subtriangular to spiniform teeth located about 3/4 distance from midline to recessed teeth flanking mandibles; sides of head with silky pilosity of abundant, subdecumbent setae/pubescence; mesosomal and gastral dorsum with abundant, long, flexuous setae, those on gaster stiffer than those on mesosoma.
Range
Costa Rica: northern Pacific lowlands.
Natural History
This species occurs in open habitats of seasonally dry areas. Workers forage on the ground and in low vegetation.
Selected Records
La Pita (120m along road to Monteverde): on roadside vegetation.
Curu Wildlife Refuge: nocturnal foragers.
Page authors:
John T. Longino, The Evergreen State College, Olympia WA 98505 USA. longinoj@evergreen.edu
Stefan Cover, Museum of Comparative Zoology, Harvard University, Cambridge MA 02138 USA. scover@oeb.harvard.edu
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