The Canadian Entomologist
This tribe, to the initiated, is readily distinguished by the eyes, which are usually quite differently shaped, rarely smooth and shining, and always distinctly facetted, although a few females have small ellipsoidal or somewhat rounded eyes, as in the tribes Photopsidini and Sphaerophthalmini, and therefore, if the greatest care is not given to other characters, could be confused with certain genera in those tribes.
Ashmead, William H., "Classification of the Fossorial, Predateous and Parasitic Wasps, or the Superfamily Vespoidea No.17" (1903). An. Paper 89.