insects are poikilothermes, hence environmentalfactors, and primarily temperature can affect their biological activities and behavior. in this study thermal range preferred by ooencyrtusfecundusferrier &voegelewas; investigated by a device producing a thermal gradient from 16 to47ºc. temperature of different parts of the arena was precisely recorded by eight thermometers entered the arena from ...

background: aquatic insects are very abundant and divers groups of insects that are associated with an aquatic or semiaquatic environment in one or more of their life stages. these insects have been, in some cases, well studied because they are vectors of several diseases. this is the first comprehensive faunistic study of aquatic insects from babol county. the results may provide basic data fo...