Monomorium capeyork

Little is known about the biology of .

Identification
Sparks et al. (2015) - A member of the M. rothsteini complex. A large amber orange species with small eyes, a deeply concave clypeus, strigate frons and a finely reticulate T1. Monomorium capeyork bears a close morphological relationship with the three other species with a deeply concave clypeal margin: Monomorium maryannae, Monomorium merepah and Monomorium stagnum but can be distinguished by the lack of sculpture on the central mesonotum and T1 having fine reticulate sculpture that extends over at least the anterior half.

Distribution
This species is known from two localities on the Cape York Peninsula.

Distribution based on Regional Taxon Lists
Australasian Region: Australia.

Genetics
COI sequences. Genbank accession numbers for this species are KC572903 and KC573009.

Nomenclature

 *  capeyork. Monomorium capeyork Sparks, in Sparks, Andersen & Austin, 2015: 500, figs. 4g–i, 11a (w.) AUSTRALIA.

Worker
(n=9). HW 0.94–0.99, HL 0.98–1.01, EL 0.16–0.18, PMH 0.35–0.41, PH 0.29–0.33, PNH 0.2–0.25, LHW 0.55–0.60, EW 0.11–12, PML 0.59–0.64, ML 0.99–1.07, PL 0.43–0.51, PNWdv 0.23–0.27.

Large species with a large, rectangular head; posterior cephalic margin shallowly concave. Anterodorsal margin of the clypeus deeply concave with frontolateral carinae produced anteriorly, extending well beyond anteroventral margin, with acute anterolateral angles and with small, rounded, preapical teeth or nodules; clypeus anteroventral margin with or without a small median projection. Frons strigate, extending well above antennal lobes or with strigae, restricted to antennal lobes and area in between; coarse lateral cephalic strigae reach anterior eye margin. Eyes small, EW < 0.2 x LHW, 12 ommatidia in longest vertical axis, 9 in longest horizontal axis.

Mesonotum strigulate/alveolate laterally and on posterior mesonotum, in many specimens also over promesonotal suture, central area smooth; posterior mesonotum appears raised in some specimens. Mesopleuron alveolate with a few strigae extending anteriorly from metanotal groove. Propodeum in lateral view with dorsolateral angles clearly forming an obtuse angle, sculpture alveolate with strigae extending over metapleural gland bulla and a few strigulae on lateral surface of posterodorsal corners; dorsal surface with a raised, transverse anterior carina, transverse strigae absent, longitudinal strigae faint or absent. Petiole node of medium breadth, between 2 and 2.5 x eye width when viewed from above; shape in posterior view broadly oval, in lateral view anterior and posterior faces converging to rounded dorsum. Petiole node and postpetiole finely reticulate, sculpture not extending more than half way to dorsal surface. T1 finely reticulate covering at least anterior half of surface.

Head, mesosoma and legs light to dark amber orange or crimson orange, petiole and postpetiole infuscated on dorsal half, metasomal tergites dark brown except T1 amber with a brown posterior margin, sternites amber, hairs dull yellow.

Type Material
Holotype worker. Queensland. 69 km N Archer R.house, Wenlock Riv, -12.4533, 143.4722, 30 Jul 2007, A.L. Hertog, TERC4 (deposited in ). Paratypes. 4 workers, same data as holotype; 5 workers, Queensland Merepah Station, Cape York Peninsula, - 13.585, 141.8748, 21 Sep 2011, A. Andersen, ANA11–39 (deposited in QM, ).

Etymology
The specific name is a noun in apposition taken from the region where this species has been found.