Aphaenogaster poultoni

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Aphaenogaster poultoni
Aphaenogaster poultoni
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Stenammini
Genus: Aphaenogaster
Species: A. poultoni
Binomial name
Aphaenogaster poultoni
Crawley, 1922

Aphaenogaster poultoni side view

Aphaenogaster poultoni top view

Specimen labels

This species is restricted to a narrow semi-arid band across south-western Western Australia and is sympatric with A. mediterrae in south-central Western Australia. It is found in coastal scrub, Jarrah forests, dry sandy sclerophyll, mulga woodlands and mallee. Nests are in soil generally with a large crater at the entrance. An exceptionally large mating swarm was noted by McMillan (1977) (misidentified as A. barbigula).

Identification

Majority of hairs on underside of head located laterally and forming a distinct psammophore; eye relatively small (EI less than 21); scape relatively short (SI less than 106); mandibular sculpture composed of irregularly sized striations; petiolar node (in dorsal view) wider than long. This species is most similar to A. barbigula. These two species can be separated by the pattern of sculpturing on the mandibles and the shape of the petiolar node.

There is a tendency for the head of A. poultoni to be more square (when viewed in full face view, the lateral and posterior margins are separated by an angle) compared to both A. barbigula and A. mediterrae (in which the head is essentially uniformly arched behind the eyes in full face view). However, all species show moderate variation in the shape of the head with essentially identical morphologies being found in some individuals of all three species. Thus while this character is indicative of A. poultoni it is not diagnostic.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Australasian Region: Australia (type locality).

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

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

  • poultoni. Aphaenogaster poultoni Crawley, 1922c: 17, figs. 11, 12 (w.) AUSTRALIA. See also: Shattuck, 2008a: 40.

Type Material

Description

Posterior margin of head nearly flat in full face view, extending laterally of the occipital collar before passing through a distinct posterolateral corner into the lateral margin of the head. Majority of hairs on venter of head located laterally and forming a distinct psammophore, only scattered hairs on central portion. Mandibular sculpture composed of irregularly sized striations. Erect hairs on mesosomal dorsum tapering to sharp points. Propodeal spines reduced to small denticles or sharp angles. Petiolar node (in dorsal view) wider than long.

References