any moth of the family Sesiidae (or Aegeriidae), characterized by the absence of scales from the greater part of the wings. They are day-flying and some, such as the hornet clearwing (Sesia apiformis), resemble wasps and other hymenopterans
clearwing in American English
(ˈklɪrˌwɪŋ)
noun
any of a family (Aegeriidae) of day-flying, wasplike moths with transparent, scaleless wings