Wagneriella is a monotypic genus probably close to Chamaelops Kirsch from Colombia, that was revised by Lanteri (1982), who established the synonymy of W. lineata and W. albula.

W. lineata shows strong sexual dimorphism in color pattern and other morphological features. Females are usually larger than males, the antennal scape is not swollen towards distal end, the first tarsal article of the front legs are not expanded, and the color of the vestiture is mostly brown with a characteristic pattern of dark and light vittae (they were originally described under the name W. lineata).
Males are smaller and narrower than females, the scape is strongly swollen towards distal end, the first tarsal article is expanded, and the vestiture is usually uniformly cream or light green, with a dark-brown vitta along pronotum and elytral suture (they have been described under the name W. albula)).

Prosopis alba Grisebach (algarrobo blanco) Prosopis algarrobilla Grisbach (espinillo o Ñandubay) and Prosopis ruscifolia Grisbach (vinal) (Fabaceae).

It is associated with trees trees and shrubs typical of the Chacoan and Espinal biogeographic provinces.