PLATE 13 



301 Phylloxera caryce- semen Pack., hickory. 



258 Caryomyia inanis Felt probably true producer; Clinodiplosis caryce Felt, presumably an 

 inquiline, hickory. 



242 Caryomyia holotricha 0. S., hickory. 



228 Caryomyia species, hickory. 



95 Aphid on sugar maple. 



22 Eriophyes acericola Garm., maple. 



179 Cecidomyia pudibunda 0. S., ironwood, Carpinus. 



317 Agromyza magnicornis Lw., iris. 



82 Lasioptera lycopi Felt, bugle weed, Lycopus. 



[92] 



