Pheidole ulothrix Wilson 2003

= Pheidole JTL-044

Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia

worker face view

worker lateral view

major face view

major lateral view


Minor worker: head length 0.55mm, head width 0.50mm, scape length 0.50mm, Webers length 0.66mm (n=1). Head rounded behind; promesonotum evenly arched, mesonotal suture absent; humeri projecting as small tubercles, each bearing a long seta; propodeal spines short; face, pronotum, and gaster largely smooth and shining; katepisternum, anepisternum, and propodeum foveolate; dorsal pilosity abundant, long, flexuous; color yellow.

Major worker: head length 0.96mm, head width 0.98mm, scape length 0.58mm (n=1). Most of face with longitudinal, subparallel rugae; vertex lobes smooth and shining; hypostomal margin flat, with small, inconspicuous median tooth, and pair of stout, sharp teeth about one third distance to recessed teeth flanking mandible bases; dorsal pilosity abundant; head with abundant, suberect setae projecting from sides of head in face view.


Costa Rica (Atlantic slope).

Natural History

Inhabits wet forest.

Selected Records

Braulio Carrillo National Park (Carrillo).

Page authors:

John T. Longino, The Evergreen State College, Olympia WA 98505 USA.

Stefan Cover, Museum of Comparative Zoology, Harvard University, Cambridge MA 02138 USA.

Date of this version: 2 September 2003.
Previous versions of this page: 8 December 1997
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