Pheidole hortonae

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Pheidole hortonae
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. hortonae
Binomial name
Pheidole hortonae
Wilson, 2003



Type Specimen Label

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

Neotropical Region: Venezuela (type locality).

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.

Pheidole hortonae Wilson 2003.jpg

Figure. Upper: holotype, major. Lower: paratype, minor. Scale bars = 1 mm.

Holotype Specimen Labels

Type Material

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.


References based on Global Ant Biodiversity Informatics

  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.