Pheidole praeses

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

The species occurs in montane rainforest. The Boraceia Biological Station series contains an ordinary queen, but that from Santa Tereza is accompanied by a large ergatogyne. (Wilson 2003)


See the description in the nomenclature section.

Keys including this Species


Known from the type locality and Santa Tereza, Espírito Santo, 700 m, Brazil. (Wilson 2003)

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb




The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • praeses. Pheidole praeses Wilson, 2003: 735, figs. (s.w.) BRAZIL.

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


DIAGNOSIS Similar to Pheidole guilelmimuelleri (see also Pheidole antillana, Pheidole bucculenta, Pheidole heyeri, Pheidole hortonae, Pheidole rhytifera; and Pheidole mamore in the scrobifera group), differing in the following combination of traits.

Major: very large, humerus very prominent and subangulate in dorsal-oblique view; mesonotal convexity flattened, its anterior edge subangulate; very shallow antennal scrobes present; a tiny patch of rugoreticulum exists laterad to each antennal fossa.

Minor: occiput narrowed, with nuchal collar; transverse carinulae circling most of the posterior half of the head capsule and covering all of the pronotal dorsum; posterior half of mesopleuron and sides of propodeum longitudinally carinulate.

MEASUREMENTS (mm) Holotype major: HW 2.28, HL 2.34, SL 1.08, EL 0.24, PW 1.02. Paratype minor: HW 0.82, HL 0.92, SL 1.12, EL 0.16, PW 0.56.

COLOR Major: overall reddish yellow; anterior fourth of head and mandibles increasingly dark in an anterior direction, so that the mandibles are light reddish brown.

Minor: concolorous dark yellow.

Pheidole praeses Wilson 2003.jpg

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

Type Material

BRAZIL: Boraceia Biological Station, Mun. Salesópolis, São Paulo, 850 m, col. W. L. Brown. Museum of Comparative Zoology


L praeses, guard, protector.


References based on Global Ant Biodiversity Informatics

  • Pizo, M.A. 2008. The Use of Seeds by a Twig-Dwelling Ant on the Floor of a Tropical Rain Forest. Biotropica 40(1):119-121