Pheidole gnomus

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

The types were collected from a forested mountain ravine. (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: Ecuador (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb



Known only from the major caste.


The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • gnomus. Pheidole gnomus Wilson, 2003: 642, figs. (s) ECUADOR.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.


DIAGNOSIS A member of the transversostriata group, close to Pheidole scolioceps, distinguished in the major by the broad band of transverse carinulae that cover the posterior half of the head, curving forward, with the most anterior carinulae ending at the eyes. Also in the major, the pronotum completely foveolate and opaque, with the anterior dorsal margins of the pronotum transversely carinulate.

MEASUREMENTS (mm) Holotype major: HW 0.84, HL 1.00, SL 0.44, EL 0.16, PW 0.44.

COLOR Major: body concolorous medium brown.

Pheidole gnomus Wilson 2003.jpg

Figure. Holotype, major. Scale bars = 1 mm.

Type Material

ECUADOR: Pichincha, 3 km from Tandari, 1300 m, col. Stewart B. and Jarmila Kukalová-Peck. Museum of Comparative Zoology


NL gnomus, dwarf.