KEY TO AMERICAN iNSECt GALLS 



197 



Cylindric, apical bud gall on subterranean root stalk, length 6 mm, diam- 

 eter 2.5 mm. 1^1. 13, fig. 7. Felt '151, p. 260 



Itonid. R h o p a 1 o m y i a 1) u 1 1j u 1 a Felt 

 Globular stem gall, diameter 2.5 cm, the interior i)ithy, with an oval cell 

 in the center. Fig. 220. Stebb. '10, p. 51 



Dipt. Goldenrod ball gall, E u r o s t a s o 1 i d a g i n i s Filch 

 Oval, stem gall, length i cm, diameter 4 to 5 mm. PI. 4, fig. S. Stebb. '10, 



P-5I 



Lepid. Scarred goldenrod gall, E u c o s m a s c u d d e r i a n a Clem. 

 Oval, stem gall on S. s e m p e r v i r e n s. Busck '11, ]). 4 



Lepid. G n o r i m o s c h c m a s a 1 i n a r i s Busck 

 Gall just above or close to the ground, on .S. r i g i d a . Busck '15, p. 82 

 Lepid. G n o r i m o s c h c m a g i b s o n i e 1 1 a Busck 



i^ 



Fig. 222. A s- 

 p h o n d y 1 i a 

 chrysothamn i 

 Felt. Infested 

 heads. (Original) 



Fig. 223. Eu- 

 rosta big- 

 eloviae Ckll. 

 (Original) 



Fig. 224. R h o p a 1 o - 

 myia utahensis Felt. 

 Bud galls, one in section. 

 (Original) 



Fusiform, stem gall, length 3 mm, diameter 1.5 cm, usually near the 

 ground, on Solidago latifolia, S. caesia and Aster 

 divaricatus. Busck '11, p. 6 



Lepid. Gnorimoschema gallaeasteriella Kellicott 

 Elongate, spindle-shaped, stem enlargement of S. canadensis. Fig 

 221. Stebb. '10, p. 51 



Lepid. Elliptical goldenrod gall, Gnorimoschema gallae 



s o 1 i d a g i n i s Riley 

 Ovoid, solitary or clustered, fleshy, bud galls on the root stalk, length 

 5 mm, diameter 3 mm. PI. 13, fig. 4. Felt 'i5i, p. 257 



Itonid. R h o p a 1 o m y i a t h o m p s o n i Felt ' 

 Cylindrical, hollow, budlike gall near the surface, length 2 cm, diameter 

 .5 cm. PL 4, fig. 4. Stebb. '10, p. 52 



Dipt. Eurosta reticulata Snow 



I Possibly a synonym of R. h i r t i p e s. 



