June-emergence
Guides
Synanthedon decipiens
oakgall clearwing, oak gall borer, Oak Gall Borer Moth
Synanthedon decipiens is a clearwing moth in the family Sesiidae, found in eastern North America. The species develops as a borer within woody oak galls formed by cynipid wasps. Adults are active primarily in June, with a possible second generation in September in some regions. The moth exhibits effective wasp mimicry, with a slender body, narrow transparent wings, and yellow abdominal banding.