Myrmecia chasei

AntWiki: The Ants --- Online
Myrmecia chasei
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmeciinae
Tribe: Myrmeciini
Genus: Myrmecia
Species group: pilosula
Species: M. chasei
Binomial name
Myrmecia chasei
Forel, 1894

Myrmecia chasei casent0907076 p 1 high.jpg

Myrmecia chasei casent0907076 d 1 high.jpg

Specimen Labels



Heterick (2009) - Myrmecia chasei and Myrmecia ludlowi have the same coloration as Myrmecia elegans, but are more robust ants with hairy tibiae. The separation of the two species by Ogata and Taylor (1991) is based purely on the colour of the mandibles (yellow in chasei, dark brown in ludlowi), but specimens seen by this author are not so easily distinguished, many having intermediate light to medium brown mandibles. Both species (if indeed they are separable species) are found in the Darling Range, including the Perth area.

Keys including this Species


Latitudinal Distribution Pattern

Latitudinal Range: -22.85° to -35°.

Tropical South

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.



Queen-worker difference in body size appears to be larger in M. chasei than in other species of Myrmecia. Queens are 22-24 millimetres long, while workers are 12-15.5 millimetres long (Wheeler 1933 p. 59).

Dealate queen of Myrmecia chasei. From Harvard MCZ collection. Photograph by Roberto Keller
Worker of M. chasei. Note different scale from queen image. From Harvard MCZ collection. Photograph by Roberto Keller


Images from AntWeb

Myrmecia chasei casent0907091 h 1 high.jpgMyrmecia chasei casent0907091 p 1 high.jpgMyrmecia chasei casent0907091 d 1 high.jpgMyrmecia chasei casent0907091 l 1 high.jpg
Syntype of Myrmecia pilosula mediorubraWorker. Specimen code casent0907091. Photographer Z. Lieberman, uploaded by California Academy of Sciences. Owned by MHNG, Geneva, Switzerland.


Images from AntWeb

Myrmecia chasei casent0903663 h 1 high.jpgMyrmecia chasei casent0903663 p 1 high.jpgMyrmecia chasei casent0903663 d 1 high.jpgMyrmecia chasei casent0903663 l 1 high.jpgMyrmecia chasei casent0903663 h 2 high.jpgMyrmecia chasei casent0903663 p 2 high.jpgMyrmecia chasei casent0903663 p 3 high.jpg
Male (alate). Specimen code casent0903663. Photographer Will Ericson, uploaded by California Academy of Sciences. Owned by NHMUK, London, UK.


gulosa group

Myrmecia esuriens

Myrmecia midas

Myrmecia pulchra

Myrmecia mjobergi

Myrmecia regularis

Myrmecia forficata

Myrmecia brevinoda

Myrmecia erecta

Myrmecia pyriformis

Myrmecia browningi

Myrmecia sp.

Myrmecia analis

Myrmecia minuscula

Myrmecia comata

Myrmecia rowlandi

Myrmecia flavicoma

Myrmecia tarsata

Myrmecia tridentata

Myrmecia eungellensis

Myrmecia fabricii

Myrmecia athertonensis

Myrmecia auriventris

Myrmecia borealis

Myrmecia gulosa

Myrmecia forceps

Myrmecia simillima

Myrmecia arnoldi

Myrmecia fulgida

Myrmecia pavida

Myrmecia vindex

Myrmecia fuscipes

Myrmecia (near nigriceps)

Myrmecia desertorum

Myrmecia nigriceps

Myrmecia nigriceps

Myrmecia inquilina

nigrocincta group

Myrmecia flammicollis

Myrmecia petiolata

Myrmecia nigrocincta

picta group

Myrmecia fucosa

Myrmecia picta

Myrmecia infima

Myrmecia urens

apicalis group

Myrmecia apicalis

pilosula group

Myrmecia testaceipes

Myrmecia acuta

Myrmecia chasei

Myrmecia clarki

Myrmecia dispar

Myrmecia occidentalis

Myrmecia tepperi

Myrmecia elegans

Myrmecia varians

Myrmecia banksi

Myrmecia croslandi

Myrmecia impaternata

Myrmecia haskinsorum

Myrmecia pilosula

Myrmecia pilosula

Myrmecia (near pilosula)

Based on Mera-Rodríguez et al. (2023).


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

  • chasei. Myrmecia chasei Forel, 1894e: 235 (w.) AUSTRALIA (Western Australia).
    • Type-material: holotype worker.
    • Type-locality: Australia: Western Australia, Perth (Chase).
    • Type-depository: MHNG.
    • Clark, 1943: 116 (q.m.); Wheeler, G.C. & Wheeler, J. 1971d: 247 (l.).
    • Combination in Promyrmecia: Clark, 1943: 115;
    • combination in Myrmecia: Taylor & Brown, 1985: 7.
    • Status as species: Forel, 1907h: 267; Emery, 1911d: 21; Clark, 1943: 115 (redescription); Clark, 1951: 212 (redescription); Taylor & Brown, 1985: 7; Taylor, 1987a: 42; Ogata, 1991a: 361; Ogata & Taylor, 1991: 1640 (in key); Bolton, 1995b: 270; Heterick, 2009: 123.
    • Senior synonym of mediorubra: Clark, 1943: 115; Clark, 1951: 212; Taylor & Brown, 1985: 7; Taylor, 1987a: 42; Ogata & Taylor, 1991: 1630; Bolton, 1995b: 270.
    • Distribution: Australia.
  • mediorubra. Myrmecia pilosula subsp. mediorubra Forel, 1910b: 7 (w.) AUSTRALIA (Western Australia).
    • Type-material: holotype worker.
    • Type-locality: Australia: Western Australia, King George Sound (no collector’s name).
    • Type-depository: MHNG.
    • Wheeler, W.M. 1933i: 59 (w.).
    • Combination in M. (Promyrmecia): Wheeler, W.M. 1933i: 58.
    • Subspecies of pilosula: Emery, 1911d: 21; Viehmeyer, 1914b: 28.
    • Status as species: Wheeler, W.M. 1933i: 58.
    • Junior synonym of chasei: Clark, 1943: 115; Clark, 1951: 212; Taylor & Brown, 1985: 7; Taylor, 1987a: 42; Ogata & Taylor, 1991: 1630; Bolton, 1995b: 272.

Type Material



  • 2n = 47 (Australia) (Meyne et al., 1995; Hirai et al., 1996).


References based on Global Ant Biodiversity Informatics

  • Forel A. 1894. Quelques fourmis de Madagascar (récoltées par M. le Dr. Voltzkow); de Nouvelle Zélande (récoltées par M. W. W. Smith); de Nouvelle Calédonie (récoltées par M. Sommer); de Queensland (Australie) (récoltées par M. Wiederkehr); et de Perth (Australie. Ann. Soc. Entomol. Belg. 38: 226-237.
  • Heterick B. E. 2009. A guide to the ants of south-western Australia. Records of the Western Australian Museum Supplement 76: 1-206. 
  • Taylor R. W. 1987. A checklist of the ants of Australia, New Caledonia and New Zealand (Hymenoptera: Formicidae). CSIRO (Commonwealth Scientific and Industrial Research Organization) Division of Entomology Report 41: 1-92.