Pheidole alienata

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Pheidole alienata
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. alienata
Binomial name
Pheidole alienata
Borgmeier, 1929

Nothing is known about the biology of alienata.


See the description in the nomenclature section.

Keys including this Species


Only known from the type locality.

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb




The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • alienata. Pheidole bergi subsp. alienata Borgmeier, 1929: 205 (s.w.) BRAZIL. Raised to species: Wilson, 2003: 264.

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


From Wilson (2003): A member of the fallax group, close to Pheidole bergi and possibly only a variant of it; also similar to Pheidole aenescens, Pheidole cordiceps, Pheidole chrysops, Pheidole midas and Pheidole nesiota. P. alienata is distinguished as follows.

Major: carinulae of dorsum of head extend more than halfway from level of eye to occiput; pronotum completely covered by transverse carinulae, and foveolate and opaque in the interspaces; humerus in dorsal-oblique view prominent, rising 2X higher above the level of the propodeum as the mesonotal convexity.

Minor: propodeal spine long, needle-like.

MEASUREMENTS (mm) Lectotype major: HW 1.52, HL 1.60, SL 0.94, EL 0.22, PW 0.78. Paralectotype minor: HW 0.68, HL 0.84, SL 1.00, EL 0.18, PW 0.48.

COLOR Major: concolorous light reddish brown.

Minor: appendages and body brownish yellow except for the gaster, which is plain medium brown.

Pheidole alienata Wilson 2003.jpg

Figure. Upper: lectotype, major. Lower: paralectotype, minor. Scale bars = 1 mm.

Type Material

BRAZIL: Guanabara, Rio de Janeiro. Museu de Zoologia da Universidade de Sao Paulo - as reported in Wilson (2003)


L alienata, estranged, maddening; allusion unknown. (Wilson 2003)


References based on Global Ant Biodiversity Informatics

  • Franco W., N. Ladino, J. H. C. Delabie, A. Dejean, J. Orivel, M. Fichaux, S. Groc, M. Leponce, and R. M. Feitosa. 2019. First checklist of the ants (Hymenoptera: Formicidae) of French Guiana. Zootaxa 4674(5): 509-543.
  • Groc S., J. H. C. Delabie, F. Fernandez, M. Leponce, J. Orivel, R. Silvestre, Heraldo L. Vasconcelos, and A. Dejean. 2013. Leaf-litter ant communities (Hymenoptera: Formicidae) in a pristine Guianese rainforest: stable functional structure versus high species turnover. Myrmecological News 19: 43-51.
  • Groc S., J. Orivel, A. Dejean, J. Martin, M. Etienne, B. Corbara, and J. H. C. Delabie. 2009. Baseline study of the leaf-litter ant fauna in a French Guianese forest. Insect Conservation and Diversity 2: 183-193.
  • Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).