Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia
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Identification
Minor worker: head length 0.61mm, head width 0.58mm, scape length 0.57mm, Webers length 0.75mm (n=1). Head flattened to slightly excavate behind; mesonotal suture weakly impressed; propodeal spines moderately long; face foveolate, with abrupt transition to smooth and shining undersurface of head; mesosomal dorsum weakly foveolate, side of pronotum smooth and shiny, katepisternum foveolate with medial smooth patch, anepisternum and propodeum foveolate; gaster smooth and shining; dorsal pilosity moderately abundant, long, flexuous; color orange brown.
Major worker: head length 1.13mm, head width 1.09mm, scape length 0.66mm (n=1). Face largely punctatorugose, rugae longitudinal, subparallel, abrupt transition to smooth and shining vertex lobes; hypostomal margin straight, with small median tooth, and pair of stout teeth one half distance to recessed teeth flanking mandible bases; dorsal pilosity abundant; head with moderately abundant, short, subdecumbent setae projecting from sides of head in face view.
Range
Costa Rica: Braulio Carrillo National Park (1800m).
Natural History
This species is known from three collections at one site in the Zona Protectora of Braulio Carrillo. All three nests were under epiphyte mats in treefalls and branchfalls. One nest was observed with definite seed caches (perhaps melastome seeds).
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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