196 



NEW YORK STATE MUSEUM 



A uniform enlargement of the stem, length 10 cm, diameter 7 mm. 

 Fig. 218. Felt '07a, p. 150 



Itonid. Goldenrod stem midge, Lasioptera cylindri- 



g a 1 1 a e Felt 

 On Solidago, various species 



Irregular, globo-conical lateral stem gall, greenish, diameter 3 mm, on 

 Solidago occidentalis 



Itonid. C e c i d o m \M a sp. a2702 



Fig. 220. Goldenrod ball gall, Eurosta Fig. 221. El- 



s o 1 1 d a g i n i s Fitch. One partly in liptical golden- 



section. (Original) rod gall, Gnor- 



imoschema 

 gal laesolid- 

 aginis Riley. 

 One gall in sec- 

 tion. (Original) 



Irregular, subglobose or fusiform, eccentric enlargement, length 2.5 cm, 

 on S. r u g o s a . Fig. 219. Osten Sacken '62, p. 368 



Itonid. Knotty goldenrod gall, Lasioptera solidaginis 



O. S (L. t u m i f i c a Beutm.) 

 Globose or subglobose, smooth, brownish and apical on either aerial or sub- 

 terranean stems, diameter 2.5 cm, on S. j u n c e a . PI. 12, fig. 9. 

 Felt '151, P- 242 

 Itonid. Root stalk bud midge, Rhopalomyia hirtipes O, S. 



