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Species: Pheidole prattorum   Wilson, 2003 


Classification:
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Taxonomic History (provided by Barry Bolton, 2017)

Pheidole prattorum Wilson, 2003A: 736, figs. (s.w.) COSTA RICA. Neotropic. AntCat AntWiki HOL

Distribution:


Neotropical Region: Americas, Atlántida, Central America, Chiapas, Costa Caribe Norte, Costa Rica, Gracias a Dios, Guatemala, Heredia, Honduras, Izabal, Jinotega, Matagalpa, Mexico, Nicaragua, Oaxaca, Olancho, Petén, Suchitepéquez, Veracruz

Distribution Notes:

Costa Rica (La Selva).

Biology:

Natural History:

Occurs in lowland rainforest; recruits to baits on forest floor; one nest observed beneath epiphytes in old treefall.

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 prattorumHNS new species

types Mus. Comp. Zool. Harvard.

Etymology Named in honor of Joe d. Pratt, ardent and effective supporter of biodiversity studies, and his family.

diagnosis Similar in various traits to balzaniHNS, brunnescensHNS, exarataHNS, excubitorHNS, fabricatorHNS, germainiHNS, hispaniolaeHNS, nigellaHNS, sabinaHNS, sarpedonHNS, tristisHNS, tristopsHNS, and unicornisHNS, distinguished as follows.

Major: reddish yellow; posterior third of head dorsum mostly smooth; carinulae cover most of anterior two-thirds of head dorsum, their posterior ends aligned in an even semicircle transversely across the head; in dorsal-oblique view, humerus raised slightly as a broad lobe; mesonotal convexity almost completely suppressed; short, thin propodeal spines vertical on propodeal basal face, in side view tilted slightly forward; postpetiole from above diamond-shaped; anterior and lateral margins of pronotal dorsum carinulate, and almost all the rest of mesosoma smooth and shiny.

Minor: head and body almost completely smooth and shiny; occiput broad, lacking a nuchal collar; propodeal spine reduced to denticle, or absent.

Measurements (mm) Holotype major: HW 1.22, HL 1.34, SL 0.60, EL 0.14, PW 0.64. Paratype minor: HW 0.54, HL 0.56, SL 0.54, EL 0.06, PW 0.34. Color Major: concolorous reddish yellow. Minor: concolorous plain medium yellow.

Range Known only from the type colony and three others collected by John T. Longino (1997) and Leeanne Tennant at the La Selva Biological Station in northeastern Costa Rica.

biology One of the colonies of prattorumHNS was found by Longino in mature lowland rainforest beneath an epiphyte mat in an old treefall.

figure Upper: holotype, major. Lower: paratype, minor. COSTA RICA: La Selva Biological Station, near Puerto Viejo, Heredia (Leeanne Tennant-Alonso). Scale bars = 1 mm.

Specimen Habitat Summary

Found most commonly in these habitats: 21 times found in cloud forest, 12 times found in tropical rainforest, 12 times found in lowland rainforest, 1 times found in Puesto 1,99G,10m., 9 times found in lowland wet forest, 6 times found in mature wet forest, 6 times found in montane wet forest, 5 times found in cloud forest clearing, 3 times found in 2º lowland rainforest, 2 times found in cloud forest edge, ...

Found most commonly in these microhabitats: 59 times ex sifted leaf litter, 19 times at bait, 1 times Hojarasca, 2 times ex rotten wood, 2 times nest in clay bank, 1 times under loose bark rotten wood, 1 times nest under buried tiles, 1 times canopy, under epiphytes, 1 times at bait on rotten log, 1 times under epiphytes, 1 times rotten log, ...

Collected most commonly using these methods: 38 times miniWinkler, 14 times search, 19 times Baiting, 16 times MaxiWinkler, 3 times Berlese, 4 times Winkler, 5 times Mini Winkler, 2 times bait, 1 times Lure/Bait, 1 times Search & Berles, 1 times Malaise, ...

Elevations: collected from 50 - 1915 meters, 653 meters average

Type specimens: paratype Pheidole prattorum: inbiocri001218698, inbiocri001218705, inbiocri001237514, inbiocri001238493, inbiocri001243077



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