KEY TO AMERICAN INSECT GALLS 



183 



Nepeta (cat mint) 



Globular or irregular, monothalamous or polythalamous leaf petiole or stem 

 gall, the simple galls with a diameter of 6 mm. Fig. 198. 235, 1-3. Beutm. 

 'loa, p. 138 



Cynipid. Cat mint gall, Aylax glechomae Linn. 



Galeopsis (hemp nettle) 



Irregular, stem gall, length .5 to 2 cm. Felt 'oQe, p. 287 



Itonid. Hemp nettle gall, Lasioptera galeopsidis Felt 



Salvia (sage) 



A conical, thick-walled, grayish brown leaf gall with a length i cm and a diameter 

 6 mm or a tubular, thin-walled leaf gall, with a length of 6 mm, on S. c a 1 i- 

 fornica and S. n i v e a. Fig. 199. Felt 'i6f, p. 184 



Itonid. Salvia leaf gall, Rhopalomyia salviae Felt 



Fig. 199. Salvia leaf gall, Rhopalomyia 

 salviae Pelt. Several types of gall, two in 

 section. (Original) 



Fig. 200. Ce c i d- 

 omy i a sp. on Mo- 

 narda, 32704, en- 

 larged. (Original) 



Monarda fistulosa (wild bergamot) 



Variable, stem gall, length 10 to 22 mm. Brodie '94, p. 109 



Itonid. C e c i d o m y i a m o n a r d i Brodie 

 Ovate root stalk bud gall, length 2.5 mm, diameter 2 mm. Fig. 200. 



Itonid. C e c i d o m y i a sp. a2704 



LycopHs (water horehound) 



Subglobular, stem gall, length 8 to 10 mm. Fig. 201. Felt '07a, p. 152 



Itonid. Lasioptera lycopi Felt 

 Fusiform stem gall, length 1.5 to 2 cm. Fig.' 202. Felt 'o8e, p. 325 



Itonid. Lasioptera mitchellae Felt 



Mentha (mint) 

 Terminal bud gall, length 3 mm, on M. g e n t i 1 i s. Felt 'iij, p. 464 



Itonid. Cecidomyia sp 



