Pheidole carinata

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

Pheidole carinata inbiocri002279948 p 1 high.jpg

Pheidole carinata inbiocri002279948 d 1 high.jpg

Specimen Labels

Occurs in leaf litter of cloud forest (Longino 1997).


See the description in the nomenclature section.

Keys including this Species


Only known from the type locality.

Latitudinal Distribution Pattern

Latitudinal Range: 10.23617° to 4.082777778°.

Tropical South

Distribution based on Regional Taxon Lists

Neotropical Region: Costa Rica (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.


Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.








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

  • carinata. Pheidole carinata Wilson, 2003: 391, figs. (s.w.) COSTA RICA.

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


A large brown member of the flavens group whose major is distinguished by its square head shape in frontal view, angulate profile of the mesonotal convexity, and rugoreticulate mesosomal dorsum.

The minor is very distinctive in the completely rugoreticulate condition of the posterior half of the head, promesonotal dorsum, and mesopleuron.

Similar to Pheidole quadriceps of Colombia but differs in the major by its much shorter propodeal spine, less extensive sculpturing on the head, the rugoreticulum of the mesosoma, which is completely lacking in quadriceps, and in color, and in the minor by the mesosomal rugoreticulation, which is absent in the quadriceps minor, and also in color. See also the less similar Pheidole kuna, Pheidole obtusopilosa, Pheidole rectisentis, Pheidole scabriventris and Pheidole termitobia.

MEASUREMENTS (mm) Holotype major: HW 1.14, HL 1.14, SL 0.62, EL 0.14, PW 0.54. Paratype minor : HW 0.54, HL 0.66, SL 60, EL 0.06, PW 0.38.

COLOR Major: head bicolorous, with head anterior to eyes yellow and remainder of head light brown (the holotype may be a callow); body light brown; tarsi and funiculi yellow; rest of legs light brown. Minor: body dark brown; tarsi and funiculi dark yellow; rest of appendages medium brown.

Pheidole carinata Wilson 2003.jpg

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

Holotype Specimen Labels

Type Material

COSTA RICA: Monteverde, Puntarenas, 10°18'N 84°48'W, 1560 m, J. T. Longino. Instituto Nacional de Biodiversidad


L carinata, keeled or ridged, referring to the ridge-like mesonotal convexity in the major.


References based on Global Ant Biodiversity Informatics

  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
  • 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.
  • Longino J. T. L., and M. G. Branstetter. 2018. The truncated bell: an enigmatic but pervasive elevational diversity pattern in Middle American ants. Ecography 41: 1-12.
  • Longino J. T., and R. K. Colwell. 2011. Density compensation, species composition, and richness of ants on a neotropical elevational gradient. Ecosphere 2(3): 16pp.
  • Longino J. et al. ADMAC project. Accessed on March 24th 2017 at