Enoplopactus sulphureovittatus is characterized by the blue-green vestiture of dense scales (rubbed in some specimens), crossed by a pair of yellow stripes along the disc of pronotum and elytra; the truncate-conical, with strongly divergent sides and postero-lateral angles not projecting in a tubercle; and the elytra with strongly bisinuate base and broad humeri without tubercles.

A key to species of Enoplopactus is given in Lanteri (1990c).

Unknown.

Probably associated with vegetation typical of the Chacoan and Monte biogeographic provinces, such as Prosopis sp and Larrea sp.