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Species: Pheidole bruesi   Wheeler, 1911 

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Taxonomic History (provided by Barry Bolton, 2022)

Pheidole triconstricta var. bruesi Wheeler, 1911b PDF: 169 (s.w.) GRENADA. Neotropic. Primary type information: Primary type material: lectotype major worker (by designation of Wilson, 2003a: 174). Primary type locality: lectotype Grenada: Grand Etang, 1910 (C.T. Brues). Primary type depository: MCZC. Secondary type information: Secondary type material: 1 paralectotype minor worker. Secondary type locality: same as for lectotype. Secondary type depository: MCZC. Type notes: Original description cites 3 syntype major workers, syntype minor workers (number not stated). AntCat AntWiki HOL

Taxonomic history

Lectotype designation: Wilson, 2003a: 174.
Status as species: Wilson, 2003a: 174 (redescription).
// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Brazil, French Guiana, Grenada
  Biogeographic regions (According to curated Bioregion/Taxon lists):


J. Longino, 27 Oct 2021: The difference between this species and P. laidlowi needs to be evaluated. The differences cited by Wilson do not seem large enough without some evidence of sympatric forms. Pheidole bruesi is the senior name. Pheidole sagax is also very similar.

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 bruesi WheelerHNS, new status

Pheidole triconstricta var. bruesi WheelerHNS 191 lb: 169.

Types Mus. Comp. Zool. Harvard.

Etymology Named after the collector, the entomologist Charles T. Brues.

Diagnosis A small, yellow, nearly hairless member of the diligensHNS group, similar to diligensHNS, inversa, laidlowi, radoszkowskii, and triconstrictaHNS, and differing by the following combination of traits.

Major: cephalic sculpturing consisting exclusively of longitudinal carinulae and foveolae, which are usually confined to the dorsal surface anterior to the posterior margin of the eyes; promesonotal profile 3-lobed; petiolar node thick; lateral margins of postpetiolar node subangular; gaster entirely smooth and shiny.

Minor: promesonotal profile 3-lobed. The Grenada series collected by Stefan Cover and me are variable, especially in the amount of cephalic sculpturing. A series nearly identical to the Grenadan population was collected by William L. Brown between Manaus and Itacoatiara, Amazonas, Brazil; it differs from the Grenada bruesiHNS types only in the convex occiput (frontal view) and convex petiolar dorsal border (rear view) of the minor. Thus the status of bruesiHNS as a Grenadan or even West Indian endemic is in doubt. Measurements (mm) Lectotype major: HW 0.98, HL 1.00, SL 0.72, EL 0.20, PW 0.46. Paralectotype minor: HW 0.52, HL 0.60, SL 0.66, EL 0.12, PW 0.34. color Major and minor: yellow.

Range Known only from Grenada and, probably, Amazonian Brazil (see Diagnosis).

Biology At La Sagesse Bay, Stefan Cover and I found P. bruesiHNS abundant in dry, semi-deciduous scrub woodland, nesting in soil covered by thin leaf litter. At Fort Jeudy, a nest was found in dry deciduous forest, in a small rotting stump with galleries extending downward into the soil. In a nutmeg grove at Concord Falls, we found nests common in the soil. A nest excavated at Sagesse Bay contained a single queen. Majors and minors were readily attracted to baits, following odor trails laid by individually foraging scout workers. A male was collected in a nest on Grenada by C. T. Brues in September.

Figure Upper: lectotype, major. Lower: paralectotype, minor. GRENADA, WEST INDIES: Grand Etang (Charles T. Brues). Scale bars = 1 mm.

Specimen Habitat Summary

Found most commonly in these habitats: 1 times found in rainforest.

Found most commonly in these microhabitats: 1 times on low vegetation.

Collected most commonly using these methods: 00 am-12 times beating vegetation, 11.

Elevations: collected at 145 m

Collect Date Range: collected between 2005-01-01 00:00:00.0 and 2018-08-24 00:00:00.0

Type specimens:

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