Pheidole laidlowi

AntWiki: The Ants --- Online
Pheidole laidlowi
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. laidlowi
Binomial name
Pheidole laidlowi
Mann, 1916

MCZ-ENT00009088 Pheidole laidlowi.hal.jpg

MCZ-ENT00009088 Pheidole laidlowi.had.jpg

Specimen Label

Nothing is known about the biology of laidlowi.


See the description in the nomenclature section.

Keys including this Species


Amazonian Brazil and Peru. (Wilson 2003)

Latitudinal Distribution Pattern

Latitudinal Range: -0.631944444° to -4.1°.

Tropical South

Distribution based on Regional Taxon Lists

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

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.

  • laidlowi. Pheidole (Pheidole) triconstricta var. laidlowi Mann, 1916: 434 (s.w.) BRAZIL. Raised to species: Wilson, 2003: 201.

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 small, yellow, nearly hairless member of the diligens group, similar to Pheidole bruesi, Pheidole diligens, Pheidole inversa, Pheidole radoszkowskii and [[Pheidole triconstricta]], differing by the following combination of traits.

Major: sculpture of dorsal surface of head entirely limited to longitudinal carinula restricted to part of head anterior to the posterior eye margin, with no rugoreticulum, and the frontal lobes bare; promesonotal profile strictly 2-lobed, with the lobes connected by a shallow, saddle-like concavity in dorsal-oblique view; propodeal spine very thin, needle-like; color pale yellow.

Minor: differing from that of the species just listed by its narrow occiput.

MEASUREMENTS (mm) Lectotype major: HW 0.96, HL 0.98, SL 0.66, EL 0.14, PW 0.48. Paralectotype minor: HW 0.48, HL 0.56, SL 0.66, EL 0.10, PW 0.34.

COLOR Major and minor: concolorous pale yellow.

Pheidole laidlowi Wilson 2003.jpg

Figure. Upper: lectotype, major. BRAZIL: Rio Madeira (W. M. Mann). Minor: Cuzco Amazónico, 15 km northeast of Puerto Maldonado, Madre de Dios, Peru (Stefan Cover and John E. Tobin). Scale bars = 1 mm.

Lectotype Specimen Labels

Type Material

BRAZIL: Rio Madeira, col. W. M. Mann. Museum of Comparative Zoology - as reported in Wilson (2003)


Eponymous. (Wilson 2003)


  • Mann, W. M. 1916. The Stanford Expedition to Brazil, 1911, John C. Branner, Director. The ants of Brazil. Bulletin of the Museum of Comparative Zoology 60: 399-490 (page 434, soldier, worker described)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 201, fig. major, minor described)

References based on Global Ant Biodiversity Informatics

  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
  • Ryder Wilkie K.T., A. L. Mertl, and J. F. A. Traniello. 2010. Species Diversity and Distribution Patterns of the Ants of Amazonian Ecuador. PLoS ONE 5(10): e13146.doi:10.1371/journal.pone.0013146