Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia
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Identification
Minor worker: head length 0.54mm, head width 0.50mm, scape length 0.53mm, Webers length 0.63mm (n=1). Head flattened and slightly excavate behind; mesonotal suture absent, promesonotum evenly arched; propodeal spines short; face and pronotum smooth and shining; katepisternum, anepisternum, and propodeum with faint, etching-like sculpture, sometimes with shiny patches on katepisternum, side of propodeum; gaster smooth and shining; dorsal pilosity abundant, long, flexuous; color yellow brown to red brown.
Major worker: head length 1.36mm, head width 1.20mm, scape length 0.67mm (n=1). Face with longitudinal, subparallel rugae between eyes and frontal carinae, fine transverse striations on vertex lobes, rest of face smooth and shining; anterior margin of clypeus with rounded notch; hypostomal margin straight, with no teeth other than recessed teeth flanking mandible bases; dorsal pilosity abundant; head with abundant, suberect setae projecting from sides of head in face view.
Range
Costa Rica: northwestern lowlands.
Natural History
Known from tuna baits in the "bosque humedo" at Santa Rosa National Park, and from roadside vegetation near Lagartos, on the road to Monteverde.
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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