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Species: Pheidole xanthogaster   Wilson, 2003 

Classification:
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Taxonomic History (provided by Barry Bolton, 2019)

Pheidole xanthogaster Wilson, 2003A: 364, figs. (w.) PERU. Neotropic. AntCat AntWiki HOL

Distribution:

  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Ecuador, Peru
  Biogeographic regions (According to curated Bioregion/Taxon lists):
    Neotropical

Comments:

J. Longino, 29 Apr 2014: This species was described from a few minor workers from Peru. I examined a collection that Amy Mertl made in Ecuador, the minors of which are a close match to a paratype of P. xanthogaster. The major worker in Amy's collection makes it clear that this is a color variant of P. biconstricta, of which there are many. I consider this a jr. syn. of P. biconstricta.

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 xanthogasterHNS new species

Types Mus. Comp. Zool. Harvard.

etymology Gr xanthogasterHNS, yellow stomach, referring to the gaster.

Diagnosis a species tentatively placed in the fallaxHNS group, of uncertain affinities, known only from the minor caste, and recognized formally here because of its strikingly distinctive bicolored body. It is further distinguished by the reduction of the propodeal spines to denticles and narrow occiput with a thin nuchal collar.

Measurements (mm) Holotype minor: HW 0.66, HL 0.80, SL 0.96, EL 0.14, PW 0.44.

Color Minor: bicolored, with head, mesosoma, and waist light yellowish brown, and gaster clear medium yellow; mandibles and tarsi clear medium yellow; antennae and other leg parts yellowish brown.

Range Known only from the type locality.

Biology The four type minors were collected from the floor of forest transitional between terra firme of higher ground and seasonally flooded forest.

Figure Holotype, minor, with paratype propodeum depicted above. PERU: Cuzco Amazonico, 15 km northeast of Puerto Maldonado, Madre de Dios (Stefan Cover and John E. Tobin). Scale bar = 1 mm.

Specimen Habitat Summary

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

Found most commonly in these microhabitats: 1 times rotten log, 1 times ex rotten log.

Collected most commonly using these methods: 1 times direct collection.

Elevations: collected from 210 - 600 meters, 340 meters average

Type specimens:



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