Key to Wasmannia Species
The key to Wasmannia species based on workers by Longino and Fernández (2007) has been modified by Cuezzo et al. (2015) to include all the described species of Wasmannia (except Wasmannia villosa, which is only known from the queen).
- Petiolar node strongly quadrate in lateral view; petiolar peduncle about as long as node; setae on mesosomal dorsum simple and erect, color red brown to orange => Wasmannia auropunctata
- Petiolar node never quadrate, more rounded; or clypeus strongly projecting and box-like and dorsal pilosity composed of a very short stubble; petiolar peduncle longer or shorter than node; color variable => 2
- Petiolar peduncle longer than node in lateral view; mesosomal dorsum with long setae (length close to the length of the propodeal spine in lateral view) and gaster smooth and shiny, with abundant long (>1 mm), curved and whitish setae => Wasmannia longiseta
- Petiolar peduncle equal to node or shorter in lateral view; mesosomal dorsum with shorter setae, gaster frequently weakly punctate with fewer, scattered setae => 3
- Scape strongly flattened; clypeus strongly projecting and boxlike, sharply divided into equaldorsal and anterior faces that meet at a right angle; setae on mesosomal dorsum abundant, straight, filiform; very short propodeal spines, about same length as the setae on mesosomal => Wasmannia scrobifera
- Scape not strongly flattened; clypeus not strongly box-like, rounded from posterior to anterior margins; setae on mesosomal dorsum longer and/or curved, clavate; propodeal spine length variable => 4
- First gastral tergite lacking erect setae; petiolar peduncle longer than node; dorsal setae on mesosoma and face thin, flexuous; color yellow orange => Wasmannia iheringi
- First gastral tergite with abundant erect setae; petiolar peduncle equal to node or shorter; dorsal setae stiff to slightly clavate; color various => 5
- Antennal scrobe narrow, not extending to side of head, ventral margin defined by preocular carina that runs from dorsal margin of eye to margin of vertex; side of head posterior to eye rounded => 5
- Antennal scrobe broad and flat, extending to side of head, ventral margin formed by angular side of head posterior to eye => 9
- Face between frontal carinae with about 12 distinct longitudinal striae overlaying strong punctate sculpture; propodeal spiracle small, diameter less than width of base of propodeal spine (Argentina) => 7
- Face between frontal carinae with fewer and more irregular longitudinal rugae, overlaying opaque but not as strongly puncate sculpture; propodeal spiracle large and conspicuous, diameter about equal to width of base of propodeal spine => 8
- Head width less than 0.50 mm; longitudinal striae on face very regular to margin of vertex; color yellow red; posterior face of petiole rounded, anterior face slightly angulate => Wasmannia sulcaticeps
- Head width greater than 0.54 mm; striae on face somewhat less parallel, becoming irregular near margin of vertex; color uniformly dark maroon, abdomen black; anterior and posterior face of petiolar node similarly rounded => Wasmannia williamsoni
- Dorsal setae on mesosoma and gaster straight to weakly curved, thin, not clavate; head relatively long, CI about 0.90; propodeal spines relatively long and upturned (Fig 1); eyes relatively larger (OI 0.26) => Wasmannia sigmoidea
- Dorsal setae on mesosoma curved and clavate; head relatively short, CI 0.95-1.00; propodeal spines short and directed posteriorly; eyes shorter (OI 0.21-0.24) => Wasmannia rochai
- Postpetiole in dorsal view subquadrate to slightly trapezoidal, with widest portion anterior to midlength; postpetiolar dorsum strongly punctate and opaque; propodeal spines relatively long and stout, in dorsal view about as long as distance between their tips => Wasmannia lutzi
- Postpetiole in dorsal view elliptical, widest portion at or posterior to mid length; postpetiolar dorsum weakly punctate, sublucid medially; propodeal spines shorter, in dorsal view shorter than distance between tips => Wasmannia affinis
- Longino, J.T. & Fernández, F. 2007. Taxonomic review of the genus Wasmannia (pp. 271-289). In Snelling, R.R., Fisher, B.L. & Ward, P.S. (eds). Advances in ant systematics: homage to E.O. Wilson – 50 years of contributions. Memoirs of the American Entomological Institute 80: 690 pp.
- Cuezzo, F., Calcaterra, L.A., Chifflet, L. & Follett, P. 2015. Wasmannia Forel (Hymenoptera: Formicidae: Myrmicinae) in Argentina: Systematics and distribution. Sociobiology, 62, 246-265 (doi:10.13102/sociobiology.v62i2.246-265).