Pheidole browni

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

Pheidole browni casent0624353 p 1 high.jpg

Pheidole browni casent0624353 d 1 high.jpg

Specimen Labels

Longino (1997) reports that browni nests in soil or in dead wood on the ground in wet forest. The species is captured frequently in Winkler samples. Longino observed a raid on a colony by Simopelta in the Braulio Carillo National Park at 1100 m elevation, in dense second-growth forest along a stream bank. Stefan Cover (personal communication) located five colonies in primary and secondary lowland rainforest at the type locality, nesting on the forest floor in rotten sticks and, in a single case, a rotten nut husk. Some of the colonies were spread over more than one nest site, and four of the five nests contained seed caches. Winged queens were present in nests at La Selva in March. (Wilson 2003)

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

Atlantic slope of Costa Rica up to 1100 m (Longino 1997).

Distribution based on Regional Taxon Lists

Neotropical Region: Belize, Colombia, Costa Rica (type locality), Guatemala, Honduras, Mexico, Nicaragua.

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Minor

Major

Nomenclature

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

  • browni. Pheidole browni Wilson, 2003: 385, figs. (s.w.) COSTA RICA.

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

Description

A small, light reddish (major) or dark yellow (minor) member of the flavens group.

Major: distinguished by an elongated head, shallow antennal scrobes, 3-lobed promesonotum in dorsal-oblique view, large propodeal spines, and foveolate and opaque dorsal head surface.

Minor: propodeal spines long and thin; humerus in dorsal-oblique view toothed; dorsal head surface foveolate and opaque; eyes very large, anteriorly tapered.

Similar to Pheidole casta, Pheidole mera, Pheidole olsoni, Pheidole prolixa, Pheidole protensa, but easily distinguished by the traits listed above.

MEASUREMENTS (mm) Holotype major: HW 0.64, HL 0.76, SL 0.34, EL 0.12, PW 0.40. Paratype minor: HW 0.36, HL 0.38, SL 0.32, EL 0.10, PW 0.26.

COLOR Major: concolorous light reddish yellow, with only a slight tinge of red.

Minor: concolorous dark yellow.


Pheidole browni Wilson 2003.jpg

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

Type Material

COSTA RICA: La Selva Biological Station, near Puerto Viejo, Heredia, col. Stefan Cover. Museum of Comparative Zoology

Etymology

Named in memory of William L. Brown, pioneering systematist of the world ant fauna.

References