KEY to AMERICAN IP^'SECf GALLS 



m 



Fusiform, stemmed, red-marked, green gall, length 13 to 14 mm. Felt '151, 

 p. 262 



Itonid. Goldenrod stemmed gall, Rhopalomyia pedicellata 



Felt 



I i 



Fig. 218. Goldenrod 

 stem midge, L a s i - 

 optera cylindri- 

 g a 1 1 a e Felt. (Au- 

 thor's illustration) 



Fig. 219. Knotty goldenrod gall, 

 Lasioptera solidaginis O. S. 

 One gall broken open to show interior. 

 (Origmal) 



Subglobular, green gall near the tip, diameter 1.5 cm. Feh '151, p. 264 



Itonid. Rhopalomyia lobata Felt 



