Key to Arabian Anochetus

This worker key is based on: Sharaf, M.R., Monks, J., Aldawood, A.S., Polaszek, A. 2017. Anochetus (Hymenoptera: Formicidae) in the Arabian Peninsula, with description of a new species from Oman. Proceedings of the Entomological Society of Washington 119, 78–89 (doi:10.4289/0013-8797.119.1.78)

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Anochetus

1

• Small species (TL 3.35–4.20, HL 0.90–1.15, HW 0.82–0.85); eyes small with six to eight ommatidia in the longest row (EI 12–15) . . . . . Anochetus annetteae

• Larger species (TL 5.00–7.50, HL 1.46–1.75, HW 1.25–1.50); eyes larger with more than 20 ommatidia in the longest row (EI 17–25) . . . . . 2

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return to couplet #1

• Head, mandibles, antennae and legs orange, mesosoma and petiole red, gaster dark brown; eyes large (EI 25); scapes short (SI 79) not surpassing the posterior margin of head; in profile, petiole with broadly rounded dorsum; mesosoma, mesopleuron, metapleuron and petiole finely and irregularly costulate . . . . . Anochetus sedilloti

• Body uniformly yellow, gastral tergites with yellow tint; eyes small (EI 17–22); scapes distinctly longer (SI 100–116) surpassing the posterior margin of head; in profile, petiole with a narrowly rounded dorsum; mesosoma faintly and irregularly rugulose; mesopleuron, metapleuron and petiole smooth . . . . . Anochetus traegaordhi