Tetramorium rogatum

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Tetramorium rogatum
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Tetramorium
Species: T. rogatum
Binomial name
Tetramorium rogatum
Bolton, 1980

Tetramorium rogatum P casent0901159.jpg

Tetramorium rogatum D casent0901159.jpg

Specimen Label

Only known from the type locality.

Identification

The clavate pilosity of Tetramorium rogatum is unique in the species group and makes it easily identifiable.

A member of the Afrotropical edouardi species complex, which is part of the weitzeckeri species group.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Afrotropical Region: Angola (type locality).

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • rogatum. Tetramorium rogatum Bolton, 1980: 231, fig. 10 (w.) ANGOLA. See also: Hita Garcia, Fischer & Peters, 2010b: 35.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Hita Garcia et al. (2010) - HL 0.84, HW 0.76, SL 0.62, PW 0.60, WL 0.98, CI 90, SI 82, OI 23. [The holotype of T. rogatum and only known specimens of this species was not available for measuring. The measurements presented above are taken from Bolton (1980)].

Head longer than wide (CI 90). Anterior clypeal margin with small median notch. Frontal carinae strongly developed, less pronounced behind eye level and reaching posterior margin of head. Antennal scrobe shallow, narrow, and without defined posterior and ventral margins, ending before posterior margin of head. Antennal scape of moderate length, not reaching posterior margin of head (SI 82). Eyes of moderate size (OI 23). Propodeal spines long and spinose. Propodeal lobes small, triangular and acute. Petiolar node high nodiform, in dorsal view slightly wider and in profile higher than long. Postpetiole in dorsal view wider than long and more voluminous than petiole; in lateral view more rounded than petiole. Mandibles distinctly longitudinally rugose. Clypeus finely rugo-reticulate. Dorso-frontal area, as well as lateral part of head ventral to scrobe, mostly longitudinally rugose, but with abundant cross-meshes. Spaces between rugae and scrobal area usually unsculptured, ground sculpturation feeble. Mesosoma dorsally and laterally with distinct, mostly longitudinal, widely spaced rugulation, ground sculpturation nearly effaced, appearing smooth and shiny. Petiole and postpetiole longitudinally rugose. All dorsal surfaces of head, mesosoma, both waist segments and gaster with abundant, long suberect to erect hairs, especially on mesosoma and first gastral tergite, strongly clavate and truncated apically. Pubescence on tibiae and antennal scapes subdecumbent to decumbent. Coloration brown.

Holotype Specimen Labels

Type Material

Hita Garcia et al. (2010) - Holotype worker, ANGOLA, Bruco, 26.II.-2.III.1972 (A11), leg. P.M. Hammond (The Natural History Museum) [examined].

References

  • Bolton, B. 1980. The ant tribe Tetramoriini (Hymenoptera: Formicidae). The genus Tetramorium Mayr in the Ethiopian zoogeographical region. Bull. Br. Mus. (Nat. Hist.) Entomol. 40: 193-384 (page 231, fig. 10 worker described)
  • Hita Garcia, F.; Fischer, G.; Peters, M. K. 2010. Taxonomy of the Tetramorium weitzeckeri species group (Hymenoptera: Formicidae) in the Afrotropical zoogeographical region. Zootaxa 2704:1-90.