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Species: Pheidole rectisentis   Wilson, 2003 

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Taxonomic History (provided by Barry Bolton, 2022)

Pheidole rectisentis Wilson, 2003a: 494, figs. (s.w.) NICARAGUA. Neotropic. AntCat AntWiki HOL
// Distribution


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

Distribution Notes:

Southern Mexico to Nicaragua.


This species is a cloud forest specialist, where it can be an abundant member of the forest floor ant community. Workers are most often collected in Winkler samples of sifted leaf litter and rotten wood.


Pheidole rectisentis is very difficult to distinguish from upper elevation forms of P. harrisonfordi. The P. rectisentis minor worker has a larger postpetiole.


DNA barcoding shows one clade with five subclusters, with less than 3% sequence divergence within the subclusters and about 10% divergence among them. So far no morphological correlates are known.

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 rectisentisHNS new species

Types Mus. Comp. Zool. Harvard.

etymology L rectisentisHNS, upright thorn, alluding to the strong, erect propodeal spines.

diagnosis Similar to bilimekiHNS, floridanaHNS, hazenaeHNS, rectilumaHNS, rectispinaHNS, rectitrudis, sospesHNS, and stomachosaHNS, differing as follows. Major: mostly blackish brown, with bicolored head; from margins of dorsal head surface to space between eyes and antennal fossae rugoreticulate, as well as lateral margins of frontal lobes; all of central third of head, including much of the vertex and occiput, solely foveolate; all of head and mesosoma overall foveolate; in dorsal-oblique view humerus subangulate; propodeal spines robust and nearly vertical to propodeal basal face in side view; postpetiole from above conulate.

Minor: eyes set well forward on head; propodeal spines robust, nearly vertical to propodeal basal face; almost all of head and all of mesosoma foveolate and opaque.

Measurements (mm) Holotype major: HW 0.90, HL 0.98, SL 0.50, EL 0.12, PW 0.48. Paratype minor: HW 0.50, HL 0.58, SL 0.46, EL 0.06, PW 0.34.

Color Major: head bicolored, with surface anterior to eye level medium reddish brown and rest blackish brown; also sides of pronotum and petiole medium reddish brown; and rest of body blackish brown; appendages light reddish brown. Minor: body blackish brown, appendages brownish yellow.

Range Known only from the type locality.

Biology The type colony was found in forest, nesting in a rotting twig in leaf litter in a tree crotch about one meter from the ground.

figure Upper: holotype, major. Lower: paratype, minor. NICARAGUA: Hotel Selva Negra, 139 km north of Matagalpa, 1200 m (Charles Kugler and J. Hahn). Scale bars = 1 mm.

Specimen Habitat Summary

Found most commonly in these habitats: 490 times found in cloud forest, 18 times found in disturbed cloud forest, 30 times found in mesophil forest, 15 times found in oak cloud forest, 16 times found in mixed hardwood forest, 21 times found in ridgetop cloud forest, 15 times found in cloud forest w/pine, 12 times found in 2º mesophil forest, 12 times found in disturbed pine-oak forest, 5 times found in mesophyl forest, ...

Found most commonly in these microhabitats: 346 times at bait, 334 times ex sifted leaf litter, 3 times nest, 4 times ex sifted litter, 1 times ex dead wood, 6 times beating vegetation, 1 times under epiphytes on ground, 2 times at baits, 1 times at bait on ground, 1 times rotten log, 2 times ex rotten log, ...

Collected most commonly using these methods: 345 times Baiting, 257 times MiniWinkler, 70 times MaxiWinkler, 14 times search, 9 times Winkler, 5 times bait, 6 times Beating, 2 times Berlese, 2 times Flight Intercept Trap, 1 times Malaise.

Elevations: collected from 1080 - 2190 meters, 1636 meters average

Collect Date Range: collected between 1978-06-18 00:00:00.0 and 2011-05-31 00:00:00.0

Type specimens: Not Provided: casent0713576, casent0713577, casent0738905; paratype Pheidole rectisentis: jtlc000016508; Paratype Pheidole rectisentis Wilson 2003: casent0645859

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