Monomorium oodnadatta

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Monomorium oodnadatta
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Solenopsidini
Genus: Monomorium
Species: M. oodnadatta
Binomial name
Monomorium oodnadatta
Sparks, 2015

Little is known about the biology of Monomorium oodnadatta.


Sparks et al. (2015) - A member of the M. rothsteini complex. A medium sized, glossy, dark brown species with a concave clypeus, a median projection on the anteroventral clypeal margin and a narrow petiole node.

Keys including this Species


This species is known from two localities in the stoney plains region of northern South Australia.

Distribution based on Regional Taxon Lists

Australasian Region: Australia (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb



COI sequences. Genbank accession numbers for this species are KC572955–KC572957.



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

  • oodnadatta. Monomorium oodnadatta Sparks, in Sparks, Andersen & Austin, 2015: 514, figs. 6m–o, 11e (w.) AUSTRALIA.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.



(n=9). HW 0.82–0.92, HL 0.88–0.96, EL 0.18–0.19, PMH 0.31–0.39, PH 0.27–0.31, PNH 0.17–0.21, LHW 0.53–0.60, EW 0.11–0.13, PML 0.49–0.59, ML 0.84–0.98, PL 0.37–0.43, PNWdv 0.21–0.27.

Medium sized species with a medium sized, rectangular head; posterior cephalic margin broadly v shaped, head broader behind eyes than in front. Anterodorsal margin of the clypeus concave with frontolateral carinae extending beyond anteroventral margin, angles rounded; anteroventral margin with a small median projection. Sculpture on frons limited to a few strigae only on antennal lobes; coarse lateral cephalic strigae reach anterior eye margin. Eyes medium, EW 0.20–0.23 x LHW, 13 ommatidia in longest vertical axis, 9 in longest horizontal axis.

Mesonotum strigulate on posterior half of lateral curvature only, remainder smooth and shining; posterior mesonotum raised posteriorly forming a ridge just prior to metanotal groove. Mesopleuron alveolate with fine strigulae spaning area between metanotal groove and promesonotal suture on dorsal half. Propodeum in lateral view with dorsolateral angles clearly forming an obtuse angle, sculpture alveolate, laterally with strigae extending over metapleural gland bulla, one or two just reaching metanotal groove, strigulae also present on lateral face of posterodorsal corners; dorsal surface with anterodorsal transverse carina and transverse strigae present, longitudinal strigae present as irregular converging lines. Petiole node narrow, between 2 and 2.5 x eye width when viewed from above; shape in posterior view tapering from widest point to narrowly rounded apex, in lateral view with anterior and posterior faces converging to narrowly rounded apex. Petiole node and postpetiole finely reticulate laterally and basally but not extending more than half way to dorsal surface. T1 completely smooth and without sculpture.

Head and mesosoma dark brown with a reddish-orange tinge, petiole and postpetiole somewhat darker, legs and antennal scapes brown, metasoma dark brown.

Type Material

Holotype worker. South Australia, Oodnadatta Tk, 160km E Marla, -27.3039, 135.0443, 15 Jun 2009, K.S. Sparks, KSS114 (deposited in South Australian Museum). Paratypes. South Australia, 20 workers, same data as holotype; 20 workers, Oodnadatta Tk, 110km E Marla, - 27.1644, 134.6194, 15 Jun 2009, K.S. Sparks, KSS112; 14 workers, KSS113 (deposited in SAM, WAM).


The specific name is a noun in apposition taken from the type locality.


  • Sparks, K.S., Andersen, A.N. and Austin, A.D. 2015. Systematics of the Monomorium rothsteini Forel species complex (Hymenoptera: Formicidae), a problematic ant group in Australia. Zootaxa. 3893:489–529. doi:10.11646/zootaxa.3893.4.2