= Pheidole JTL-090
Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia
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Identification
Minor worker: head length 0.60mm, head width 0.56mm, scape length 0.62mm, Webers length 0.75mm (n=1). Head slightly flattened behind; mesonotal suture absent, promesonotum evenly arched; propodeal spines of moderate length; face, pronotum, and propodeal dorsum smooth and shining; katepisternum and side of propodeum foveolate; gaster smooth and shining; dorsal pilosity moderately abundant, long, flexuous; color dark brown.
Major worker: head length 1.04mm, head width 1.00mm, scape length 0.64mm (n=1). Anterior half of face with longitudinal, subparallel rugae, posterior half smooth and shining; hypostomal margin gently curved, with small, inconspicuous median tooth, and pair of minute teeth about half distance to recessed teeth flanking mandible bases; dorsal pilosity abundant; head with abundant, suberect setae projecting from sides of head in face view.
Range
Costa Rica: southern highlands, Cordillera de Tilar‡n.
Natural History
I collected the type specimens of this species in a montane moist forest habitat, in a Winkler sample of sifted leaf litter from the Wilson Botanical Garden. I collected the species a second time in a small fragment of montane riparian forest, at the Los Llanos Biological Station near Monteverde. This is also a mid-montane moist forest habitat. I found a nest by following workers recruiting to cookie crumbs. The nest was in a rock crevice in the splash zone of a small stream.
Page author:
John T. Longino, The Evergreen State College, Olympia WA 98505 USA. longinoj@evergreen.edu
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