In rainforest. (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.
- hortonae. Pheidole hortonae Wilson, 2003: 709, figs. (s.w.) VENEZUELA.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
DIAGNOSIS Similar to antillana of the lesser Antilles and Pheidole avia, Pheidole bucculenta, Pheidole guilelmimuelleri, Pheidole hetschkoi, Pheidole heyeri, Pheidole mamore, Pheidole praeses and Pheidole rhytifera of South America, differing in the following combination of traits.
Major: antennal lobe prominent above clypeus in side view; pilosity on dorsal surface of body long, erect to suberect, and very dense, with many of those on pronotum curving backward and many of those on mesonotum curving forward; patch of rugoreticulum present laterad to antennal fossa; rear half of head capsule smooth and shiny; pronotal dorsum mostly rugoreticulate, and dorsum of mesonotum smooth and shiny.
Minor: posterior half of the head and all of the mesosomal dorsum rugoreticulate; pilosity long, erect to suberect, and very dense, with hairs on the pronotal dorsum curving backward and those on the mesonotum curving forward.
MEASUREMENTS (mm) Holotype major: HW 1.60, HL 1.66, SL 0.70, EL 0.18, PW 0.84. Paratype minor: HW 0.70, HL 0.74, SL 0.70, EL 0.12, PW 0.48.
COLOR Major: body and mandibles medium reddish brown, other appendages brownish yellow.
Minor: body medium brown, appendages light brown except for tarsi, which are yellow.
Figure. Upper: holotype, major. Lower: paratype, minor. Scale bars = 1 mm.
VENEZUELA: Estado Aragua, Rancho Grande, 1100 m, col. William L. and Doris E. Brown. Museum of Comparative Zoology
Named in honor of Kathleen M. Horton, expert and indispensable contributor to the preparation of this Pheidole monograph.
- Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 709, fig. major, minor described)