Strumigenys smilax

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

Strumigenys smilax casent0280721 p 1 high.jpg

Strumigenys smilax casent0280721 d 1 high.jpg

Specimen Labels

Nothing is known about the biology of Strumigenys smilax.


Bolton (2000) - The only member of the Strumigenys smilax-group. S. smilax is immediately diagnosed by its dentition, extremely long and strongly developed preocular carina, long narrow petiole node, strangely carinate pronotum and proximally placed femoral gland bulla.

Keys including this Species


Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb




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

  • smilax. Strumigenys smilax Bolton, 2000: 562, figs. 330, 350, 352 (w.) BRAZIL.

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



Holotype. TL 3.1, HL 0.75, HW 0.50, CI 67, ML 0.52, MI 69, SL 0.56, SI 112, PW 0.32, AL 0.82. Mandible with proximal preapical tooth just over half the length of the distal. Upper scrobe margin with a narrow but conspicuous cuticular flange, its width about one third the maximum width of the scape. Eye very reduced, of 5-6 small ommatidia. Very long preocular carina divides scrobe into upper and lower compartments throughout its length. Ground-pilosity of head and alitrunk narrowly spoon-shaped and conspicuous; with alitrunk in dorsal view an arched row of anteromedially directed spoon-shaped hairs extends along the promesonotal junction, and a posteriorly directed row extends along each dorsolateral propodeal margin. Apicoscrobal hair stiff and simple; a pair of similar hairs present on vertex close to occipital margin. Pronotal humeral hair stiff and simple; a similar but shorter pair present on mesonotum. Waist segments and first gastral tergite with suberect to erect short stout remiform hairs. Pronotum marginate anteriorly; in profile the margination extends obliquely down side of sclerite as a coarse carina that terminates above the front coxa close to the posterolateral angle of the pronotum. Metanotal groove narrowly and deeply impressed. Pleurae and side of propodeum finely reticulate-punctate everywhere. Bullae of femoral glands proximal of midlength on dorsal surfaces of middle and hind femora. Petiole in profile with dorsal length of node much greater than height of anterior face of node. In dorsal view petiole node much longer than broad and lacking a posterior spongiform collar although a narrow cuticular carina is present. Disc of postpetiole superficially sculptured, with a narrow spongiform anterior collar. Basigastral costulae sparse and widely spaced; first gastral tergite finely superficially shagreenate.

The non-paratypic material consists of a single damaged worker. It has dimensions TL 2.9, HL 0.67, HW 0.45, CI 67, ML 0.47, MI 70, SL 0.50, SI 111, PW 0.30, AL 0.76. Eye even smaller than in holotype, of a single ommatidium. Hairs on first gastral tergite simple to feebly remiform and usually blunt or truncated apically, not as stout or obviously remiform as in holotype.

Type Material

Holotype worker, Brazil: Goias, Niquelandia, 18-30.v.1996, 14°17'06"S, 48°55'01"W, Peneira Rio do Peixe (Silvestre, Silva & Brandao) (Museu de Zoologia da Universidade de Sao Paulo).


  • Bolton, B. 2000. The ant tribe Dacetini. Memoirs of the American Entomological Institute. 65:1-1028. (page 562, worker described)

References based on Global Ant Biodiversity Informatics

  • Silva T. S. R., and R. M. Feitosa. 2019. Using controlled vocabularies in anatomical terminology: A case study with Strumigenys (Hymenoptera: Formicidae). Arthropod Structure and Development 52: 1-26.