Galapagos Species Checklist

Pheidole aff. megacephala

(Fabricius, 1793)

Domain Eukaryota
Kingdom Animalia
Division Arthropoda
Class Insecta
Order Hymenoptera
Suborder Apocrita
Superfamily Vespoidea
Family Formicidae
Subfamily Myrmicinae
Seccion Pheidolini
Genus Pheidole

Pheidole aff. megacephala  (Fabricius, 1793)


English common name: Big-headed ant

Spanish common name: hormiga

Name status: Identification not yet confirmed.

Description: Small ant (2 to 4 mm long) ranging in colour from yellow to dark brown. It forms large colonies with many queens. There are two forms of worker, one larger and less common than the other, with a large heart-shaped head. It normally disperses by walking. It is omnivorous, eating dead insects and seeds and can kill young chicks and reptiles by swarming.

Last updated: 01 Mar 2013


  • In
  • Na

  • Ac

    Taxon accidentally introduced, naturalized in the wild.

  • Cu
  • Er
  • Es
  • Ic
  • AcQ
    Questionable Accidental
  • NaQ
    Questionable Native


Galapagos island groups: San Cristóbal, Santa Cruz.

Santa Cruz, San Cristobal, originally from the Mediterranean region.

Please be aware that this distribution map is automatically generated from database records (CDF and external specimens, literature records, and observations) and may not accurately reflect the currently-known distribution for all species.


  • Mueller-Dombois, D., Loope, L. (1987) Algunos Aspectos Ecológicos unicos en Ecosistemas de Islas Oceánicas. Memorias Taller sobre investigación Botánica y manejo en Galápagos. Pg. 24-32.