Changes of cuticular properties in adult Esphestia cautella ( Walker ) (Lepidoptera : Pyralidae) developed after cessation of eggs growth

Abstract

ABSTRACT Both normally developed insects and insects developed after cessation of eggs growth were used in this work. Cessation of eggs growth occurred following abnormal conditions, which lasted for 3.5 months before developing into adults, due to the war led by the U.S. and her alliances against Iraq. These insects showed low rates of water contents and an active response to water loss. Therefore their tolerance of desiccation was weak. In addition, they had an active ability to restore their water loss quickly, after return them to a culture, this indicates that some changes occurred in their integumentary properties were not permanent and took their turn within one population only, but may or may not serve this population. That depends on the climatic factors.