Tetramorium glabratum

Nothing is known about the biology of .

Identification
Mbanyana et al. (2018) - Tetramorium glabratum is similar to Tetramorium rufescens. They both lack pilosity on the dorsum of the mesosoma and on the first gastral tergite and are both reddish coloured. Tetramorium glabratum can be distinguished from the latter by the short and broad propodeal spines (PSLI 4–8), which are long and narrow in T. rufescens (PSLI 16–23).

Distribution
This species occurs in South Africa (Northern Cape and Western Cape) and Namibia.

Distribution based on Regional Taxon Lists
Afrotropical Region: Namibia, South Africa.

Habitat
Known from Nama Karoo, Succulent Karoo and the Namib Desert.

Nomenclature

 *  glabratum. Tetramorium solidum st. glabratum Stitz, 1923: 162 (w.) NAMIBIA. Raised to species, senior synonym of rutilum and material of the unavailable name aciculatum referred here: Bolton, 1980: 246.
 * rutilum. Tetramorium rutilum Prins, 1973: 14, figs. 14-18, 30 (w.q.) SOUTH AFRICA. Junior synonym of glabratum: Bolton, 1980: 246.

Worker
Mbanyana et al (2018) - (N = 7) HL 1.042–1.141 (1.065); HW 1.031–1.092 (1.065) SL 0.757–0.836 (0.800); EL 0.295–0.315 (0.304); PH 0.462–0.531 (0.504); PW 0.667–0.738 (0.705); WL 1.033–1.239 (1.105); PSL 0.049–0.489 (0.060); PTH 0.344–0.374 (0.357); PTL 0.266–0.305 (0.290); PTW 0.315–0.384 (0.359); PPH 0.384–0.433 (0.410); PPL 0.246–0.275 (0.259); PPW 0.423–0.482 (0.452); OI 28–29 (29); CI 95–100 (97); SI 73–78 (75); DMI 57–71 (64); LMI 40–50 (46); PSLI 4–8 (5); PeNI 44–55 (51); LPeI 73–89 (81) DPeI 108–131 (124); PpNI 58–69 (64); LPpI 59–68 (63); DPpI 165–186 (174); PPI 120–141 (126).

Type Material
Mbanyana et al (2018):

Holotype of Tetramorium solidum st. glabratum Stitz, 1923, worker: Karibib, 23–26 Apr. 1911, W. Michaelsen leg. (: FOCOL2085).

Holotype of Tetramorium solidum race glabratum var. aciculatum Stitz, 1923: worker, Lüderitzbucht, 5–13 Jul. 1911, W. Michaelsen leg. (types not in ZMHB, presumably lost).

Syntypes of Tetramorium rutilum Prins, 1973: 8 pinned workers, 1 pinned ♀, Western Cape, Van Rhynsdorp, 19 Apr. 1963, J.J. Cillie leg. (SAM-ENT-0011750).

References based on Global Ant Biodiversity Informatics

 * IZIKO South Africa Museum Collection
 * Koch F., and K. Vohland. 2004. Ants along a southern African transect - a basis for biodiversity change monitoring (Insecta, Hymenoptera, Formicidae). Zoosystematics and Evolution 80(2): 261-273.
 * Mbanyana N. 2013. Taxonomy, phylogeny and biogeography of seed-harvesting ants in the Tetramorium solidum-group (Hymenoptera: Formicidae). Masters of Science in the Department of Botany and Zoology at Stellenbosch University 115 pages.
 * Mbanyana N., F. Hita Garcia, H. G. Robertson, and J. J. Le Roux. 2018. A taxonomic revision of seed harvester ants of the Tetramorium solidum group (Hymenoptera: Formicidae) in southern Africa. European Journal of Taxonomy 454: 1-59.
 * Prins A. J. 1973. African Formicidae (Hymenoptera) in the South African Museum. Description of four new species and notes on Tetramorium Mayr. Annals of the South African Museum 62: 1-40.
 * Stitz H. 1923. Hymenoptera, VII. Formicidae. Beiträge zur Kenntnis der Land- und Süsswasserfauna Deutsch-Südwestafrikas 2: 143-167.