Monomorium subdentatum

Nothing is known about the biology of .

Identification
Bolton (1987) - A member of the M. opacum complex in the M. salomonis species group. Known only from a couple of syntypes and a short series from Kienge, Zaire, subdentatum is only feebly separated from opacum. Further collections may well provide intermediates in the characters mentioned above. A series from Kienge (in MCZ) differs from the syntypes as the alitrunk of the worker has a few minute standing hairs on the promesonotum and a quite densely hairy first gastral tergite. Whether this series represents a separate species, or whether the syntypes of subdentatum have been badly abraded, remains to be decided.

Distribution based on Regional Taxon Lists
Afrotropical Region: Democratic Republic of Congo.

Nomenclature

 * . Monomorium subdentatum Forel, 1913b: 332 (w.) DEMOCRATIC REPUBLIC OF CONGO.
 * Type-material: syntype workers (number not stated).
 * Type-locality: Democratic Republic of Congo (“Congo belge”): Katanga, Elisabethville (= Lubumbashi), 23.iv.1912 (Bequaert).
 * Type-depositories: MHNG, MRAC.
 * Status as species: Emery, 1922e: 179; Wheeler, W.M. 1922a: 872; Santschi, 1936a: 35; Ettershank, 1966: 92; Bolton, 1987: 359 (redescription); Bolton, 1995b: 267.
 * Distribution: Democratic Republic of Congo.

Worker
Bolton (1987) - TL 3.1-3 ·3, HL 0.80, HW 0.63-0.66, CI 79-83, SL 0.66-0.68, SI 103-105, PW 0.42, AL 0.94-0.98 (2 measured).

Answering the description of Monomorium opacum but differing as follows:

subdentatum - In profile propodeal dorsum and declivity meeting in a sharply defined or subdentate angle. SI 103-105. Anterior free margin of median portion of clypeus concave.

opacum - In profile propodeal dorsum and declivity rounding together, not meeting in a sharp angle. SI 90-100. Anterior free margin of median portion of clypeus convex.

Type Material
Bolton (1987) - Syntype workers, Zaire: Katanga, Elisabethville, 23.iv.1912 (Bequaert) [examined].

References based on Global Ant Biodiversity Informatics

 * Bolton B. 1987. A review of the Solenopsis genus-group and revision of Afrotropical Monomorium Mayr (Hymenoptera: Formicidae). Bulletin of the British Museum (Natural History). Entomology 54: 263-452.
 * Forel A. 1913. Formicides du Congo Belge récoltés par MM. Bequaert, Luja, etc. Revue Zoologique Africaine (Brussels). 2: 306-351.
 * IZIKO South Africa Museum Collection
 * Wheeler W. M. 1922. Ants of the American Museum Congo expedition. A contribution to the myrmecology of Africa. VIII. A synonymic list of the ants of the Ethiopian region. Bulletin of the American Museum of Natural History 45: 711-1004