Pantomorus luteipes is a small species, with pronotum almost as long as wide (in most Naupactini is distinctly wider than long) and slightly constricted near base. The vestiture is mostly dark brown to black, with white stripes along midline of pronotum and elytra, and flanks of elytra. Elytral setae are fine, long and erect.
This species probably mimics ants and/or Mutillid wasps.
Larrea divaricata Cav., Larrea cuneifolia Cav. (Zygophyllaceae) and Prosopis alpataco Phil. (Fabaceae).
It is mainly associated with native vegetation of the Chacoan, Espinal and Monte biogeographic provinces.