PLATE 21 



107 Nematus desmodioides Walsh, willow. 



110 Rhabdophaga strobiloides Walsh, willow. 



43 Nematus pomum Walsh, willow. 



37 Rhabdophaga triticoides Walsh, willow. 



42 Phytophaga rigidce Walsh, willow. 



238 (?) Cecidomyia on willow. 



70 Rhabdophaga nodula Walsh, willow. 



98 Rhabdophaga batatas Walsh, willow. 



62 Eriophyes on willow. 



61 Hormomyia verruca Walsh, willow. 



40 Neolasioptera perfoliata Felt, thoroughwort. 



[108] 



