Pheidole scolioceps

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Pheidole scolioceps
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. scolioceps
Binomial name
Pheidole scolioceps
Wilson, 2003

At the type locality, Stefan Cover and John E. Tobin found five colonies in terra firme forest and woodland transitional to seasonally flooded forest, nesting variously in clay soil and, in one instance, a hollow rotten stick on the forest floor. (Wilson 2003)


See the description in the nomenclature section.

Keys including this Species


From Wilson (2003): Known from the type locality and from the Pirelli Plantation (Iriboca), near Belém, Pará, Brazil, col. P. F. Darlington.

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil, Colombia, Ecuador, Guyana, Peru (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb




The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • scolioceps. Pheidole scolioceps Wilson, 2003: 644, figs. (s.w.) PERU.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.


DIAGNOSIS A member of the transversostriata group, closest to Pheidole gnomus of Ecuador, distinguished in the major by the broad swath of transverse carinulae covering the posterior third of the head, but unlike those of gnomus, they are less extensive and do not curve downward to the sides; also, the pronotum is completely smooth and shiny and lacks anterior carinulae.

MEASUREMENTS (mm) Holotype major: HW 0.72, HL 0.88, SL 0.40, EL 0.10, PW 0.34. Paratype minor: HW 0.38, HL 0.44, SL 0.40, EL 0.06, PW 0.24.

COLOR Major and minor: concolorous clear medium yellow.

Pheidole scolioceps Wilson 2003.jpg

Figure. Upper: holotype, major. Lower: paratype, minor. Scale bars = 1 mm.

Type Material

PERU: Cuzco Amazónico, 15 km northeast of Puerto Maldonado, Madre de Dios, col. Stefan Cover. Museum of Comparative Zoology


Gr scolioceps, bent head, alluding to dorsal profile of major.