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Species: Pheidole ectatommoides   Wilson, 2003 

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Taxonomic History (provided by Barry Bolton, 2019)

Pheidole ectatommoides Wilson, 2003A: 683, figs. (s.w.) COSTA RICA. Neotropic. AntCat AntWiki HOL


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Costa Rica, Nicaragua, Panama
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Distribution Notes:

Colombia, Costa Rica, Ecuador, Panama. Costa Rica: Atlantic slope.


Natural History:

Occurs in mature wet forest; forages nocturnally.

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 ectatommoidesHNS new species

Types Mus. Comp. Zool. Harvard.

Etymology L ectatommoidesHNS, referring to the distinctive sculpturing of the minor especially, reminiscent of ectatommoid ponerine ants.

diagnosis A highly distinctive species with some resemblance to arietansHNS, glyphodermaHNS, and triumbonataHNS, but instantly recognizable by the unique pattern of sculpturing, especially on the minor worker, as illustrated. Measurements (mm) Holotype major: HW 1.98, HL 2.12, SL 0.90, EL 0.24, PW 0.86. Paratype minor: HW 0.74, HL 0.80, SL 0.84, EL 0.20, PW 0.50.

color Major: head, mesosoma, and waist light reddish brown; appendages and gaster reddish yellow. Minor: head and mesosoma reddish yellow; waist, gaster, and appendages plain medium yellow.

Range Recorded from Costa Rica, Panama, Colombia, and Ecuador. J. T. Longino (1997) found the species in Costa Rica on the Atlantic slope.

Biology Longino (1997) discovered workers foraging at night on the ground and on a fallen branch in a forest. At several localities across the range, caches of seeds have been found in the nests.

Figure Upper: holotype, major. Lower: paratype, minor. COSTA RICA: Rio Toro Amarillo, near Guapiles (William L. Brown). Scale bars = 1 mm.

Specimen Habitat Summary

Found most commonly in these habitats: 15 times found in montane wet forest, 3 times found in wet forest, 2 times found in mature wet forest, 2 times found in cloud forest.

Found most commonly in these microhabitats: 7 times Hojarasca, 2 times ex sifted leaf litter, 1 times scattered on a branch on the ground in an old branchfal, 1 times nest in dead stick, 1 times rama seca, 3 times bajo de M/16, 1 times strays, 1 times Sobre Vegetacion, 1 times sifted litter (leaf mold, rotten wood), 1 times nocturnal foragers, 1 times bajo de M/17, ...

Collected most commonly using these methods: 7 times Mini Winkler, 4 times Search, 1 times Winkler, 5 times flight intercept trap, 1 times miniWinkler, 1 times Sweeping, 1 times 6L sifted litter, extracted in Winkler sack over ~18 hours, 1 times Malaise.

Elevations: collected from 50 - 1110 meters, 707 meters average

Type specimens:

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