110.jpg Knopper Gall Wasp (Andricus quercuscalicis)ThumbnailsPicture-wing Fly (Urophora cardui)Knopper Gall Wasp (Andricus quercuscalicis)ThumbnailsPicture-wing Fly (Urophora cardui)Knopper Gall Wasp (Andricus quercuscalicis)ThumbnailsPicture-wing Fly (Urophora cardui)Knopper Gall Wasp (Andricus quercuscalicis)ThumbnailsPicture-wing Fly (Urophora cardui)Knopper Gall Wasp (Andricus quercuscalicis)ThumbnailsPicture-wing Fly (Urophora cardui)
Chemically induced distortion of an unopened leaf axillary or terminal bud caused by a parthenogenetic hymenopteran gall wasp