The holotype was collected in rainforest at a tuna bait; the Chiriquí, Panama, specimens were found in a log. Males were present in the latter colony on 18 August. (Wilson 2003)
See the description in the nomenclature section.
Keys including this Species
From Wilson (2003): Known from the type locality and from El Volcan, Chiriquí, Panama, 1280 m, col. L. Hare. (Wilson 2003)
Distribution based on Regional Taxon Lists
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
This species is known from majors and males.
The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- olsoni. Pheidole olsoni Wilson, 2003: 478, figs. (s.) COSTA RICA.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
DIAGNOSIS Known only from the major, easily distinguished by its very small size, elongated head, bicolorous body, protuberant frontal lobe in side view, small propodeal spine, cornulate postpetiole, and unusual pattern of the rugulae mesad to the eye, which travel downward (anteriorly) from the eye obliquely mesad to meet the circular carinulae of the antennal fossae.
MEASUREMENTS (mm) Holotype major: HW 0.54, HL 0.74, SL 0.30, EL 0.08, PW 0.30.
COLOR Major: head, dorsum of alitrunk, petiolar node, and all of postpetiole medium brown; rest of body and all of appendages medium yellow.
Figure. Holotype, major. Scale bars = 1 mm.
COSTA RICA: Refugio de Eladio, Peñas Blancas Valley, Alajuela, 780 m, col. David Olson. Museum of Comparative Zoology
Named after the collector David Olson.
- Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 478, fig. major described)