Monomorium atomum Forel

Type location India (Monomorium atomus n. sp., Forel, 1902c: 210, worker; Bingham, 1903: 208, queen) Orissa, Taylor - see below
subspecies
aharonii (Monomorium (Mariae) atomus r mictilis var aharonii, Forel, 1913d: 438, worker; Monomorium atomus var aharonii, Menozzi, 1933b: 64, in key, worker) from Israel - see http://www.antweb.org/specimenImages.do?code=casent0908764
cooperi (Monomorium (Lampromyrmex) atomus Forel subsp. cooperi subsp. n., Donisthorpe, 1942a: 29, all forms) from Egypt, Siwa - see below
integrium (var. integrius n. var., Forel, 1902c: 210, worker & queen) from India - see http://www.antweb.org/specimenImages.do?code=casent0908765
procax (Forel, 1911a: 23, worker & queen) from Singapore - see http://www.antweb.org/specimenImages.do?code=casent0908766.

Forel's (1902c) description is at . Bingham's (1903) description, with the queen and integrius, is at . Donisthorpe's (1942a) description of cooperi is at .Forel (1911) noted procax as TL 1.3-14 mm; colour rather more brown than type, petiole node somewhat higher; erect pilosity more abundant; from Singapore, collector Haviland. Forel (1913d) noted aharonii as TL 1.3 mm; eyes with about 7 facets; clypeal carinae more feeble than type mictilis, hardly perectible and very obtuse, rest identical; in Menozzi's (1933b) key for species from Palestine, the separation is - 11-segmented antennae (also clavicorne) but head with sides rounded, wholly yellow, eyes small, ca 7 facets [clavicorne with sides of head straight, eyes with more facets, gaster with apex dull yellow].

Egypt records - in HNS as Monomorium (Lampromyrmex) atomus subsp. cooperi Donisthorpe - Donisthorpe (1942a) all forms; one male, one alate queen & 12 workers from Siwa, collected by J Omer-Cooper. Donisthorpe (1947e) recorded "ssp cospeis Donisthorpe" presumably a bizarre printing error for cooperi, as from Siwa, 1 worker, 3-5.v.1935.

The photomontage is of the holotype worker collated from http://www.antweb.org/specimen.do?name=casent0908763

The photomontage is of a syntype worker of cooperi collated from http://www.antweb.org/specimen.do?name=casent0902276

Oxford University Museum specimens

Monomorium atomum B Taylor det.

Egypt M Sharaf

7.viii.2007 Ebu Salam 31°10' N 31°35' E

Sallant Mansurah

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The photomontage is of a worker from Egypt, Mansurah, 31°10'N 31°35'E; collected by Mostafa Sharaf, 7.viii.2007.

Following the Afrotropical key of Bolton (1987) leads to Monomorium vaguum, also with numerous erect hairs on the alitrunk and elsewhere.

The photomontage of what seems to be a good match for the limited descriptions, perhaps of cooperi, is of a specimen from Egypt, Masa Mantrouh, collected by Mostafa Sharaf, 2007.