Strumigenys agnosta

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

Strumigenys agnosta casent0900102 p 1 high.jpg

Strumigenys agnosta casent0900102 d 1 high.jpg

Specimen Labels

Nothing is known about the biology of Strumigenys agnosta.

Identification

A member of the Strumigenys baudueri-group.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Afrotropical Region: South Africa (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.

  • agnosta. Pyramica agnosta Bolton, 2000: 293, figs. 199, 227 (w.) SOUTH AFRICA. Combination in Strumigenys: Baroni Urbani & De Andrade, 2007: 115

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 2.0, HL 0.51, HW 0.34, CI 67, ML 0.07, MI 14, SL 0.27, SI 79, PW 0.24, AL 0.52. Answering the description given for Strumigenys dictynna, to which it is closely related; the two are separated by the following distinguishing characters.

S. agnosta: Spatulate hairs on disc of clypeus fine and indistinct. Occipital lobe without a laterally projecting flagellate hair in full-face view. Cephalic dorsum close to occipital margin with a single pair of fine erect hairs that are situated close to the midline. Hairs on first gastral tergite restricted to a basal and an apical transverse row, the central band of the sclerite hairless. Dorsal length of petiolar peduncle about equal to the height of the anterior face of the node in profile.

S. dictynna: Spatulate hairs on disc of clypeus broad and conspicuous. Occipital lobe with a laterally proj ecting flagellate hair in full-face view. Cephalic dorsum close to occipital margin with a pair of erect hairs close to the midline, and a second pair close to the occipital corners that are directed dorsolaterally. Hairs on first gastral tergite distributed over the sclerite, without a broad hairless central band. Dorsal length of petiolar peduncle greater than height of the anterior face of the node in profile.

Paratypes. TL 1.9-2.0, HL 0.47-0.51, HW 0.33-0.34, CI 66-72, ML 0.07, MI 14-16, SL 0.25-0.27, SI 74-79, PW 0.22-0.25, AL 0.50-0.52 (7 measured).

Type Material

Holotype worker, South Africa: Transvaal, Soutpansberg E, 15.iii.1973, E-Y 58, sifting (S. Endrody-Younga) (Transvaal Museum).

Paratypes. 1 1 workers with same data as holotype (TVM, South African Museum, The Natural History Museum, Museum of Comparative Zoology).

References

  • Baroni Urbani, C. & De Andrade, M.L. 2007. The ant tribe Dacetini: limits and constituent genera, with descriptions of new species. Annali del Museo Civico di Storia Naturale “G. Doria”. 99:1-191.
  • Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 293, figs. 199, 227 worker described)