Two colonies of the types were taken by Ward under a stone in Baccharis scrub, at roadside. (Wilson 2003)
See the description in the nomenclature section.
Keys including this Species
Only known from the type locality.
Distribution based on Regional Taxon Lists
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- alpestris. Pheidole alpestris Wilson, 2003: 166, figs. (s.w.) ECUADOR.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
A small, brown member of the diligens group distinguished in both major and minor by the low mesonotal convexity, shallow metanotal depression in side view, and hence a more cylindrical form of the mesosoma overall in side view than is usual for Pheidole; a small convexity atop the metanotal depression in side view; large, robust propodeal spines; and dense erect to suberect pilosity over the entire body; pubescence absent.
Major: a secondary convexity on the pronotum and a small, angular subpostpetiolar process evident in side view.
Minor: ventral profile of head capsule flat in side view. Very close to, and possibly synonymous with, Pheidole cameroni, but distinguished by, among other traits, much denser pilosity and the absence of carinulae mesad to the eye in the major.
MEASUREMENTS (mm) Holotype major: HW 1.02, HL 1.02, SL 0.78, EL 0.20, PW 0.54. Paratype minor: HW 0.54, HL 0.62, SL 0.44, EL 0.12, PW 0.34.
COLOR Major: concolorous medium brown.
Minor: concolorous light brown.
Figure. Upper: holotype, major. Lower: paratype, minor. Scale bars = 1 mm.
ECUADOR: 6 km southeast of Pifo, Pichincha, 0°15'S 78°18'W, 2900 m, col. Philip S. Ward. Museum of Comparative Zoology
L alpestris, of high mountains.
- Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 166, fig. major, minor described)