Prionus integer Classification Family Cerambycidae > Subfamily Prioninae > Tribe Prionini > Genus Prionus Diagnostic Features of Larvae Larva. Distinguished from Prionus emarginatus only by the fact that the distal teeth or projections on the epistoma are quite small and acute and some distance from the median ones, the medial larger and obtusely rounded; the carina of the projecting front is sharper edged and distinctly arcuate, and a short carina is present in the region of the ocelli. These specimens were sent in from Nebraska by a correspondent who stated that the larvae had destroyed a large portion of the corn in a field by eating the roots. Adapted from Craighead (1923). Biology and Economic Importance Biology and economic importance for this taxon coming soon. Selected References to Larvae Specimens Craighead, 1923