Pheidole tennantae Wilson 2003

Formicidae, Hymenoptera, Insecta, Arthropoda, Animalia

worker face view

worker lateral view

major face view

major lateral view


Minor worker: head length 0.51mm, head width 0.49mm, scape length 0.46mm, Webers length 0.63mm (n=1). Head rounded to somewhat flattened behind; promesonotum evenly arched, mesonotal suture absent; humeri projecting as tubercles, each bearing a long seta; propodeal spines moderately long, projecting obliquely; face, pronotum, and gaster largely smooth and shining; katepisternum, anepisternum, and propodeum foveolate; dorsal pilosity abundant, long, flexuous; color red brown.

Major worker: head length 0.85mm, head width 0.80mm, scape length 0.43mm (n=1). Face largely covered with longitudinal, subparallel rugae; antennal scrobes in the form of broad, shallow depressions, not sharply delimited; surface of scrobe smooth and shiny, unlike surrounding striatorugose sculpture; hypostomal margin flat, with small, rounded, 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, erect setae projecting from sides of head in face view.


Costa Rica (Atlantic lowlands).

Natural History

Inhabits wet forest floor; nests in dead wood on ground.

Selected Records

La Selva: multiple Winkler and Berlese samples; at honey/shortening baits on forest floor.

La Selva: nest in dead wood on ground (C. Thompson study).

Braulio Carrillo National Park, 300m: Winkler sample.

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.

Last modified: 2 September 2003.

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