Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia
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Identification
Minor worker: head length 0.54mm, head width 0.50mm, scape length 0.49mm, Webers length 0.59mm (n=1). Head rounded behind, with median impression; mesonotal suture very weak, barely visible as a slight impression; propodeal spines short, upturned; postpetiole globular, little wider than petiole in dorsal view; face and mesosoma uniformly foveolate with the exception of the katepisternum, which is smooth and shiny; first gastral tergum smooth and shining; dorsal setae abundant, medium length, flexuous; color orange.
Major worker: head length 0.99mm, head width 0.96mm, scape length 0.53mm (n=1). Face longitudinally rugose, interspaces weakly foveolate, becoming smooth and shiny on posteriormost face and vertex lobes; hypostomal margin gently curved; median tooth present; lateral teeth pointed, stout, about one third distance from midline to recessed teeth flanking mandible bases; dorsal pilosity abundant; head with abundant suberect setae projecting from sides of head in face view; postpetiole trapezoidal in dorsal view.
Range
Costa Rica: Cordillera Volcanica Central, Volcan Barva transect, 1100m.
Natural History
This species is known from one collection. Workers were on the ground in a recent clearing in wet montane forest.
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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