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Species: Pheidole micridris   Wilson, 2003 

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Taxonomic History (provided by Barry Bolton, 2022)

Pheidole micridris Wilson, 2003a: 455, figs. (s.) PERU. Neotropic. Primary type information: Primary type material: holotype major worker. Primary type locality: Peru: Madre de Dios, Cuzco Amazónico, 15 km. NE Puerto Maldonado (S. Cover & J.E. Tobin). Primary type depository: MCZC. AntCat AntWiki HOL

Taxonomic history

Status as species: Bezděčková et al., 2015 PDF: 120.
// Distribution


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


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.

Specimen Habitat Summary

Collect Date Range: collected on 2005-01-01 00:00:00.0

Type specimens:

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