Pseudomyrmex inquilinus

AntWiki - Where Ant Biologists Share Their Knowledge
Jump to navigation Jump to search
Pseudomyrmex inquilinus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Pseudomyrmecinae
Genus: Pseudomyrmex
Species: P. inquilinus
Binomial name
Pseudomyrmex inquilinus
Ward, 1996

Pseudomyrmex inquilinus casent0902926 p 1 high.jpg

Pseudomyrmex inquilinus casent0902926 d 1 high.jpg

Specimen Labels

This species is an inquiline. Queens live in the nest of a different ant species, have no workers and are entirely dependent on their hosts for food. The queens produce eggs that are cared for and raised to maturity by the host workers.

At a Glance • Workerless Inquiline  




Distribution based on Regional Taxon Lists

Neotropical Region: Argentina (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb


Ward (1996) - Brief observations on behaviour were made in the field during the collection of nest no. 12844. Most of the P. inquilinus queens were close to the host queen. One was riding on the back of the host queen gaster, holding on with her mandibles around the anterior peduncle of the petiole. (The concave masticatory margins of the P. inquilinus mandibles make them well-suited for this task.) As the nest was broken open Pseudomyrmex host workers were seen encountering P.inquilinus queens and no antagonistic behaviour ensued. The single parasite male was in the upper part of the twig nest, where most of the host males were concentrated, while the nine parasite queens and the host queen occurred in the lower portions of the nest. The entire host nest occupied a hollow section of the dead twig about 0.5 m in length (out of a total length of about 1 m).



The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • inquilinus. Pseudomyrmex inquilinus Ward, 1996: 255, figs. 1-4, 11, 12, 21, 22 (q.m.) ARGENTINA.