Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia
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Identification
Minor worker: head length 0.59mm, head width 0.57mm, scape length 0.60mm, Webers length 0.75mm (n=1). Head rounded behind to somewhat flattened; promesonotum evenly arched, mesonotal suture absent; humeri projecting as tubercles, each bearing a long seta; propodeal spines short; scapes faintly foveolate; face largely smooth with faint traces of punctation; pronotum largely smooth with faint punctation anterodorsally and on humeri; katepisternum, anepisternum, and propodeum foveolate; gaster smooth and shining; dorsal pilosity abundant, long, flexuous; color yellow.
Major worker: head length 1.13mm, head width 1.13mm, scape length 0.63mm (n=1). Face punctatorugose throughout; rugae longitudinal, subparallel between eye and frontal carinae, subparallel between frontal carinae, reticulate elsewhere; vertex lobes conspicuously reticulate rugose; hypostomal margin concave, with small, rounded median tooth, and pair of stout, sharp teeth about two thirds distance to recessed teeth flanking mandible bases; gular area laterally compressed, such that recessed teeth are less than half distance to side of head; dorsal pilosity abundant; head with abundant, suberect setae projecting from sides of head in face view.
Range
Costa Rica: mid-elevation Talamancas and Cordillera de Tilaran.
Natural History
Inhabits wet forest leaf litter.
Selected Records
Winkler samples from San Vito, Penas Blancas Valley.
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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