PLATE 5 



Gall midge wings 



1 Wing of Rhabdophaga populi Felt, C. 78, x 20 



2 Wing of Rhabdophaga acerifolia Felt, C. 36, x 20 



3 Wing of Rhabdophaga consobrina Felt, C. 39, x 20 



4 Wing of Rhabdophaga batatas Walsh, C. a686, x 20 



5 Wing of R. batatas Walsh, female, x 20 



224 



