Pheidole defecta

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Pheidole defecta
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. defecta
Binomial name
Pheidole defecta
Santschi, 1923

Pheidole defecta casent0913303 p 1 high.jpg

Pheidole defecta casent0913303 d 1 high.jpg

Specimen Labels

Pheidole defecta' is only known from one major worker from an unspecified site in Guatemala (Longino 2019).


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: Guatemala (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb



This species is only known from majors.


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

  • defecta. Pheidole defecta Santschi, 1923d: 54 (s.) GUATEMALA. See also: Hölldobler & Wilson, 1992: 16; Wilson, 2003: 575.

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


From Wilson (2003): DIAGNOSIS A unique but problematic species known only from the holotype major, tentatively placed in the pilifera group because of the 2-toothed hypostoma but equally well placed in the flavens group because of the overall habitus; the discovery of the minor may help settle the matter. Close in habitus to Pheidole nasutoides (which is placed in the flavens group), but differing in promesonotal shape, smaller size of the propodeal spine and spiracle, mostly smooth and shiny body, much sparser pilosity, and different color.

MEASUREMENTS (mm) Holotype major: HW 1.10, HL 1.10, SL 0.64, EL 0.16, PW 0.56.

COLOR Major: concolorous medium yellow.

Pheidole defecta Wilson 2003.jpg

Figure. Unique holotype, major. Scale bars = 1 mm.

Type Labels

Type Material

GUATEMALA (no further locality). Naturhistorisches Museum, Basel - as reported in Wilson (2003)


L defecta, fault, lack (significance unknown). (Wilson 2003)