Pheidole rotundiceps

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

Nothing is known about the biology of rotundiceps.


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.

  • rotundiceps. Pheidole rotundiceps Wilson, 2003: 744, 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.


DIAGNOSIS A very large, yellow member of the tristis group, similar to Pheidole pepo, Pheidole sphaerica and Pheidole subsphaerica, easily distinguished by the following traits.

Major: head capsule nearly circular in outline; the entire outline of the head in full-face view almost completely devoid of pilosity; entire head posterior to the level of the eye sparsely covered by rows of elongate foveae; postpetiolar node seen from above bluntly cone-shaped.

MEASUREMENTS (mm) Holotype major: HW 2.34, HL 2.24, SL 1.10, EL 0.30, PW 0.98.

COLOR Major: concolorous light reddish yellow (light “orange”).

Pheidole rotundiceps Wilson 2003.jpg

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

Type Material

ECUADOR: Tinalandia, 16 km southeast of Domingo de los Colorados, col. Stewart B. and Jarmila Kukalová-Peck. Museum of Comparative Zoology


L rotundiceps, round head.