Iridomyrmex prismatis

Iridomyrmex prismatis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Dolichoderinae
Tribe:	Leptomyrmecini
Genus:	Iridomyrmex
Species:	I. prismatis
Binomial name
	Iridomyrmex prismatis; Shattuck, 1993

For details of the ecology of the ant see Shattuck (1993b).

Identification

Iridomyrmex prismatis is a well-defined species.

Keys including this Species

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: -32.68333333° to -36.49277878°.


North Temperate	North Subtropical	Tropical	South Subtropical	South Temperate

Source: AntMaps

Distribution based on Regional Taxon Lists

Australasian Region: Australia (type locality).

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.

Biology

Castes

Worker

Images from AntWeb


Holotype of Iridomyrmex prismatis. Worker. Specimen code casent0172064. Photographer April Nobile, uploaded by California Academy of Sciences.	Owned by ANIC, Canberra, Australia.

Nomenclature

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

prismatis. Iridomyrmex prismatis Shattuck, 1993b: 1321, figs. 20, 21, 36 (w.) AUSTRALIA. See also: Heterick & Shattuck, 2011: 123.

Type Material

Holotype, worker, about 15km WNW Yaapeet, Wyperfield National Park, Victoria, Australia, Australian National Insect Collection.
Paratype, 3 workers, about 15km WNW Yaapeet, Wyperfield National Park, Victoria, Australia, Australian National Insect Collection.

Description

Worker Description. Head. Posterior margin of head weakly convex to planar; erect setae on posterior margin in full-face view set in a row; sides of head noticeably convex; erect genal setae present on sides of head in full- face view. Ocelli absent; in full-face view, eyes set at about midpoint of head capsule; in profile, eye set anteriad of head capsule. Erect setae on scape absent, except at tip; prominence on anteromedial clypeal margin always completely absent; mandible elongate triangular with oblique basal margin; long, curved setae on venter of head capsule present. Mesosoma. Pronotum moderately and evenly curved over its length. Erect pronotal setae numerous (12 or more) and longest setae elongate, flexuous and/or curved. Mesonotum sinuous, or straight. Erect mesonotal setae numerous (12 or more), short and bristly. Mesothoracic spiracles prominent or inconspicuous; propodeal dorsum smoothly and evenly convex, or straight and short (equal in length to propodeal declivity); placement of propodeal spiracle posteriad and near propodeal declivity, or mesad, more than its diameter away from propodeal declivity; propodeal angle present as a bluntly defined right angle, the dorsal and declivitous propodeal faces never separated by a carina, or weakly present or absent, the confluence of the dorsal and declivitous propodeal faces indicated, if at all, by an undulation. Erect propodeal setae numerous (12 or more), short and bristly. Petiole. Dorsum of node planar; node thick, orientated anteriad. Gaster. Non-marginal erect setae of gaster present on first gastral tergite; marginal erect setae of gaster present on first tergite. General characters. Allometric differences between workers of same nest absent. Colour brown to black, genae around mandibles and antennal flagellum orange in eastern states populations, pale bluish iridescence present on head and body. Colour of erect setae white.

Measurements. Worker (n = 6)—CI 90–94; EI 28–3 1; EL 0.25–0.29; EW 0.14–0.18; HL 0.90–1.09; HW 0.82–1.00; ML 0.35–0.46; PpH 0.13–0.18; PpL 0.51–0.62; SI 87–94; SL 0.75–0.89.

References

Heterick, B.E. & Shattuck, S.O. 2011. Revision of the ant genus Iridomyrmex (Hymenoptera: Formicidae). Zootaxa 2845: 1-175.
Heterick, B.E. 2021. A guide to the ants of Western Australia. Part I: Systematics. Records of the Western Australian Museum, Supplement 86, 1-245 (doi:10.18195/issn.0313-122x.86.2021.001-245).
Heterick, B.E. 2022. A guide to the ants of Western Australia. Part II: Distribution and biology. Records of the Western Australian Museum, supplement 86: 247-510 (doi:10.18195/issn.0313-122x.86.2022.247-510).
Shattuck, S. O. 1993b. Revision of the Iridomyrmex calvus species-group (Hymenoptera: Formicidae). Invertebr. Taxon. 7 7: 1303-1325 (page 1321, figs. 20, 21, 36 worker described)

References based on Global Ant Biodiversity Informatics

Heterick B. E., and S. Shattuck. 2011. Revision of the ant genus Iridomyrmex (Hymenoptera: Formicidae). Zootaxa 2845: 1-174.
Shattuck S. O. 1993. Revision of the Iridomyrmex calvus species-group (Hymenoptera: Formicidae). Invertebrate Taxonomy 7: 1303-1325.