| Ocymyrmex robustior|
Chance observation by Marsh in the Namib Desert indicates that mating almost definitely occurs at night, probably at almost any time of the year, and takes place at the nest entrance of the mother colony. Their main food supply is obtained by scavenging dead or heat-stressed insects. (Bolton and Marsh 1989).
A member of the barbiger group.
Keys including this Species
Distribution based on Regional Taxon Lists
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
A series of papers focused on Ocymyrmex biology (Marsh, 1985 a, 1985 b), or on Ocymyrmex species as a component of the Namib Desert ant community (Marsh, 1985 c, 1986 a, 1986 b) included information about robustior. In all but the last of these papers the ant referred to as Ocymyrmex barbiger is actually Ocymyrmex robustior. At the times of publication of Marsh's first four papers robustior was incorrectly being treated as a junior synonym of barbiger. The former is now considered to be a valid species, separate from barbiger but belonging to the same species-group. The name robustior was elevated to species-level in Marsh (1986 b).
The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- robustior. Ocymyrmex barbiger var. robustior Stitz, 1923: 146 (w.) NAMIBIA. Bolton & Marsh, 1989: 1279 (q.m.). Junior synonym of barbiger: Bolton, 1981b: 265. Revived from synonymy and raised to species: Marsh, 1986: 339. See also: Marsh, 1985: 286; Bolton & Marsh, 1989: 1303.
- Bolton, B. 1981. A revision of six minor genera of Myrmicinae (Hymenoptera: Formicidae) in the Ethiopian zoogeographical region. Bulletin of the British Museum (Natural History) Entomology. 43:245-307. PDF (page 265, Junior synonym of barbiger)
- Bolton, B. and A. C. Marsh. 1989. The Afrotropical thermophilic ant genus Ocymyrmex (Hymenoptera: Formicidae). Journal of Natural History. 23:1267-1308.PDF (page 1279, queen, male described)
- Marsh, A. C. 1985a. Forager abundance and dietary relationships in a Namib Desert ant community. S. Afr. J. Zool. 20: 197-203.
- Marsh, A. C. 1985b. Microclimatic factors influencing foraging patterns and success of the thermophilic desert ant, Ocymyrmex barbiger. Insectes Sociaux. 32:286-296.
- Marsh, A. C. 1985c. Thermal responses and temperature tolerance in a diurnal desert ant, Ocymyrmex barbiger. Physiological Zoology. 58:629-636.
- Marsh, A. C. 1986. Ant species richness along a climatic gradient in the Namib Desert. Journal of Arid Environments. 11:235-241.
- Marsh, A. C. 1986b. Checklist, biological notes and distribution of ants in the central Namib Desert. Madoqua 14: 333-344 (page 339, Revived from synonymy, and raised to species)
- Stitz, H. 1923. Hymenoptera, VII. Formicidae. Beitr. Kennt. Land- Süsswasserfauna Dtsch.-Südwestafr. 2: 143-167 (page 146, worker described)