Technomyrmex semiruber

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Technomyrmex semiruber
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dolichoderinae
Genus: Technomyrmex
Species: T. semiruber
Binomial name
Technomyrmex semiruber
Emery, 1899

Technomyrmex semiruber casent0905075 p 1 high.jpg

Technomyrmex semiruber casent0905075 d 1 high.jpg

Specimen Labels

Besides the type material, there is a collection from a mature wet forest.


Bolton (2007) - A member of the T. semiruber complex in the Technomyrmex albipes group. T. semiruber is very distinctive and is related to the East African species Technomyrmex menozzii and Technomyrmex hostilis, but is easily distinguished from them by its much denser pilosity and presence of erect setae on the scapes and tibiae. See notes under hostilis.

Keys including this Species


Distribution based on Regional Taxon Lists

Afrotropical Region: Cameroun (type locality), Uganda.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb==Biology==



The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • semiruber. Technomyrmex semiruber Emery, 1899e: 489 (w.) CAMEROUN. See also: Bolton, 2007a: 35.

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



Bolton (2007) - TL 3.0, HL 0.77, HW (approximate as right side of head is crushed) 0.76, SL 0.74, PW 0.50, WL 1.00. Indices: CI 99,5197,0125, EP167, DTI 134.

Dorsum of head smooth and shining, with abundant setae of varying length (too many to count easily), the longest about equal to the maximum diameter of the eye. Ventral surface of head with numerous short setae. Anterior clypeal margin almost transverse, with only an extremely shallow and feeble concavity across the median portion. Clypeus smooth and shining. Outer margin of eye just touches outline of side in full-face view. Scape, especially leading edge and dorsum, with numerous erect fine setae; most slightly shorter than maximum scape width but the longest about subequal to the scape width. Pranotal dorsum smooth and shining except for setal pits; numerous setae present on pronotum, shorter than the maximum diameter of the eye. Mesonotum in profile with a transverse anterior section and a steep declivitous face, the two surfaces of equal length. Metathoracic spiracle on a strongly prominent tubercle. Propodeum in profile with a long, shallowly convex dorsum that rounds broadly and evenly into the declivity. Propodeal spiracle very high on the declivity. Mesonotum without setae, propodeum with a couple of pairs posteriorly (above the spiracle), but both surfaces appear to have suffered some abrasion. Middle and hind tibiae with short suberect to erect setae that are shorter than the maximum tibial width. Pubescence on legs much denser than on gaster. Gastral tergites 1 - 4 each with abundant setae, the longest subequal to the maximum diameter of the eye. Gastral tergites strongly shining; gastral pubescence short and very sparse. Head, mesosoma, petiole, gaster and appendages glossy light brown; gaster glossy dark brown.

Type Material

Bolton (2007) - Syntype worker, Cameround: no loc, 1895 (Conradt) (Museo Civico di Storia Naturale, Genoa) [examined].


  • Bolton, B. 2007b. Taxonomy of the dolichoderine ant genus Technomyrmex Mayr (Hymenoptera: Formicidae) based on the worker caste. Contributions of the American Entomological Institute. 35(1): 1-149.
  • Emery, C. 1899d. Fourmis d'Afrique. Ann. Soc. Entomol. Belg. 43: 459-504 (page 489, worker described)

References based on Global Ant Biodiversity Informatics

  • Braet Y., and B. Taylor. 2008. Mission entomologique au Parc National de Pongara (Gabon). Bilan des Formicidae (Hymenoptera) recoltes. Bulletin S. R. B. E./K.B.V.E. 144: 157-169.