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Species: Pheidole browni   Wilson, 2003 

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Taxonomic History (provided by Barry Bolton, 2022)

Pheidole browni Wilson, 2003a: 385, figs. (s.w.) COSTA RICA. Neotropic. Primary type information: Primary type material: holotype major worker. Primary type locality: Rica: Heredia, La Selva Biological Station, nr Puerto Viejo (S. Cover). Primary type depository: MCZC. Secondary type information: Secondary type material: 1 paratype minor worker. Secondary type locality: same as for holotype. Secondary type depository: MCZC. Type notes: Details of paratype castes and their numbers are not given. AntCat AntWiki HOL

Taxonomic history

// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Belize, Colombia, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Distribution Notes:

Costa Rica (Atlantic slope to 1000m).


Natural History:

Inhabits wet forest leaf litter; nests in soil or in dead wood on ground.

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press

Pheidole browniHNS new species

Types Mus. Comp. Zool. Harvard.

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

diagnosis A small, light reddish (major) or dark yellow (minor) member of the flavensHNS 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 castaHNS, meraHNS, olsoniHNS, prolixaHNS, and protensaHNS, 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.

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

biology Longino (1997) reports that browniHNS 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 SimopeltaHNS 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.

Figure Upper: holotype, major. Lower: paratype, minor. COSTA RICA: La Selva Biological Station, near Puerto Viejo, Heredia (Stefan Cover). Scale bars = 1 mm.

Specimen Habitat Summary

Found most commonly in these habitats: 369 times found in cloud forest, 304 times found in montane wet forest, 274 times found in mesophyll forest, 219 times found in ridgetop cloud forest, 109 times found in mesophil forest, 96 times found in mature wet forest, 86 times found in tropical wet forest, 79 times found in lowland rainforest, 54 times found in montane rainforest, 34 times found in tropical rainforest, ...

Found most commonly in these microhabitats: 924 times ex sifted leaf litter, 703 times at bait, 107 times Hojarasca, 5 times nest, 2 times bajo de M/08, 1 times in dead stick, 2 times ex sifted litter, 1 times sifted leaf litter, 2 times forest litter, 1 times ex sifted leaf litter on ground, 1 times nest in root mat on boulder, ...

Collected most commonly using these methods: 795 times miniWinkler, 704 times baiting, 105 times Mini Winkler, 106 times MaxiWinkler, 31 times Winkler, 16 times search, 28 times Berlese, 12 times Flight Intercept Trap, 6 times bait, 1 times Search & Berles, 3 times beating, ...

Elevations: collected from 30 - 2020 meters, 1018 meters average

Collect Date Range: collected between 1980-09-21 00:00:00.0 and 2020-02-16 00:00:00.0

Type specimens: Not Provided: casent0283247

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