Inclusions in adults of the European pine sawfly, Neodiprion sertifer (Geoff.).

Abstract

Hard, dark-red, tumor-like inclusions that are apparently unrelated to nuclear polyhedrosis have been detected in adult Neodiprion sertifer. The frequency of occurrence of these structures is related to larval rearing temperature. They are consistently more common in adults that have undergone prepupal diapause than in adults that have not had a prepupal diapause. Differences in the incidence of the inclusions occur between families, and the bodies are more commonly found in females than in males.