Strumigenys transenna

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Strumigenys transenna
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Strumigenys
Species: S. transenna
Binomial name
Strumigenys transenna
Bolton, 2000

Strumigenys transenna casent0900595 p 1 high.jpg

Strumigenys transenna casent0900595 d 1 high.jpg

Specimen Labels

Known from the single type collection, nothing is known about the biology of Strumigenys transenna.

Identification

A member of the londianensis complex in the Strumigenys rogeri -group.

Bolton (2000) - S. transenna is the largest Afrotropical species yet recorded in the genus. It is close to Strumigenys londianensis and Strumigenys sarissa, also from East Africa. S. londianensis is easily isolated as it possesses some hairs on the leading edge of the scape that are curved toward the base of the scape, and the pronotal humeral hairs are remiform and stiff. In the other two species all hairs on the leading edge of the scape are curved toward the apex of the scape and the humeral hairs are long and flagellate. S. sarissa is decidedly smaller than transenna (compare measurements) and has a pair of erect stiff hairs anteriorly on the pronotal dorsum, between the flagellate hairs at the humeri.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Afrotropical Region: Burundi (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.

  • transenna. Strumigenys transenna Bolton, 2000: 606, figs. 369, 406 (w.q.) BURUNDI.

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

Description

Worker

Holotype. TL 3.8, HL 1.01, HW 0.71, CI 70, ML 0.54, MI 53, SL 0.67, SI 94, PW 0.41, AL 1.00. Characters of londianensis-complex. Hairs on leading edge of scape all curved toward apex of scape. Cephalic dorsum without erect hairs. Pronotum with flagellate humeral hairs but dorsum between them without erect stout hairs. Propodeum with a pair of short triangular teeth. Disc of postpetiole finely sculptured but sculpture tending to be fainter and more superficial medially. Maximum length of hind femur > 0.80. First gastral tergite with weakly curved standing hairs that are feebly remiform or slightly flattened apically. Basigastral costulae fine and dense, extending over the basal third of the sclerite.

Paratypes. TL 3.8-4.0, HL 1.01-1.05, HW 0.69-0.72, CI 67-70, ML 0.54-0.58, MI 52-55, SL 0.66-0.68, SI 94-97, PW 0.40-0.43, AL 1.00-1.05 (9 measured).

Type Material

Holotype worker, Burundi: Banage, 6.v.1980 (A. Dejean) (The Natural History Museum).

Paratypes. 21 workers and 1 queen (dealate) with same data as holotype (BMNH, Museum of Comparative Zoology, South African Museum).

References

  • Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 606, worker described)