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Species: Pheidole micridris   Wilson, 2003 

Classification:
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Taxonomic History (provided by Barry Bolton, 2018)

Pheidole micridris Wilson, 2003A: 455, figs. (s.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, 20 Apr 2014: This isolated major worker was found in a mixed series with P. cardiella. It looks somewhat intermediate between major and minor workers of P. cardiella, and it is possible this is an aberrant major-minor worker intercaste.

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 micridrisHNS new species

Types Mus. Comp. Zool. Harvard.

Etymology Gr micridrisHNS, small and knowing one.

Diagnosis Unique, distinguished in the major by the very small size; circular head shape in full-face view; eyes set far forward in the head; raised promesonotum that drops through a long, steep face to the metanotum; conate postpetiole; restriction of carinulae to the frontal lobes and antennal fossae; and completely foveolate head and mesosoma. Minor: unknown.

Measurements (mm) Holotype major: HW 0.64, HL 0.64, SL 0.34, EL 0.12, PW 0.32. Color Major: dark yellow, with gaster a shade darker of brownish yellow.

Range Known only from the type locality.

Biology The type specimen was collected from a "red rotten" log on the floor of terra firme forest.

Figure Unique holotype, major. PERU: Cuzco Amazonico, 15 km northeast of Puerto Maldonado, Madre de Dios (Stefan Cover and John E. Tobin). Minor unknown. Scale bar = 1 mm.



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