Monomorium luteum

Collection records show this species has been found foraging and in ground nests, in habitats that range from agricultural areas (irrigated date and olive trees), roadside desert, and rocky washes with vegetation.

Distribution based on Regional Taxon Lists
Afrotropical Region: Saudi Arabia, United Arab Emirates, Yemen. Palaearctic Region: Oman.

Nomenclature

 * . Monomorium luteum Emery, 1881b: 533 (w.) ERITREA, YEMEN.
 * Type-material: syntype workers (number not stated).
 * Type-localities: Eritrea: Ras Doumeirah, 30.xii.1879 (G. Doria & O. Beccari), Yemen: Aden (G. Doria & O. Beccari).
 * Type-depositories: MSNG, NHMB.
 * Combination in M. (Xeromyrmex): Emery, 1922e: 177.
 * Status as species: Dalla Torre, 1893: 67; Emery, 1893f: 256; Emery, 1895f: 337; Emery, 1922e: 177; Santschi, 1936a: 36 (redescription); Ettershank, 1966: 90; Collingwood, 1985: 271; Bolton, 1995b: 264; Collingwood & Agosti, 1996: 349; Collingwood, et al. 2011: 435; Borowiec, L. 2014: 121; Madl, 2019: 15; Borowiec, L. & Salata, 2020: 13.
 * Distribution: Egypt, Eritrea, Jordan, Oman, Saudi Arabia, United Arab Emirates, Yemen.

Description
Collingwood and Agosti (1996) - TL 4.0-4.2; HL 113-115; HW 0.76-0.78; SL 1.10-1.13; CI 66.1; SI 1.140-1.147; EL/HW 0.323.

This is the largest of the Arabian Monomorium species. The head is very long; the antennal scapes are very long; the alitrunk is flat with a shallow oblique mesopropodeal furrow and the petiole is low with a smoothly rounded dorsum. The pronotum has one pair of hairs, the mesonotum one pair, the petiole one pair, the postpetiole two pairs and the first gaster tergite has seven pairs of long hairs. The general aspect is moderately shining with superficial reticulate sculpture becoming coarser on the propodeum. The general body colour is pale brownish yellow.

References based on Global Ant Biodiversity Informatics

 * Borowiec L. 2014. Catalogue of ants of Europe, the Mediterranean Basin and adjacent regions (Hymenoptera: Formicidae). Genus (Wroclaw) 25(1-2): 1-340.
 * Collingwood C. A. 1985. Hymenoptera: Fam. Formicidae of Saudi Arabia. Fauna of Saudi Arabia 7: 230-302.
 * Collingwood C. A., D. Agosti, M. R. Sharaf, A. Van Harten, 2011. Order Hymenoptera, family Formicidae. Arthropod Fauna of the UAE 4: 405-474
 * Collingwood, C. A. and D. Agosti. 1996. Formicidae (Insects: Hymenoptera) of Saudi Arabia (Part 2) Fauna of Saudi Arabia 15: 300-385.
 * Collingwood, C. A. "Hymenoptera: Fam. Formicidae of Saudi Arabia." Fauna of Saudi Arabia 7 (1985): 230-302.
 * Emery, C. "Viaggio ad Assab nel Mar Rosso dei Signori G. Doria ed O. Beccari con il R. Avviso "Esploratore" dal 16 novembre 1879 al 26 febbraio 1880. I. Formiche." Annali del Museo Civico di Storia Naturale 16 (1881): 525-535.
 * Madl M. 2019. Notes on the ant fauna of Eritrea (Insecta: Hymenoptera: Formicidae): type specimens deposited in the Natural History Museum Vienna (Austria) and a preliminary checklist. Ann. Naturhist. Mus. Wien, B 121: 9-18.