210 



NEW YORK STATE MUSEUM 



A bud deformation of black, globose or densely-crowded filaments. Chadwick 

 '08, p. 127 



Acarid. Eriophyes sp. 

 Ovate masses of linear, modified leaves occurring on the branchlets of a species 

 of Artemisia, length of mass 1.5 cm, diameter 5 to 7 cm. 



Acarid. Eriophyes sp., a2733 

 Subconical, short-wooled, yellowish gray, axillary bud gall, length 2 cm, 

 diameter i cm. (Collected by L. H. Weld) 



Dipt. T r y p e t i d a2774 

 Globose, axillary, woolly bud gall, diameter 7 to 10 mm, the hairs grayish white, 

 short and thick. (Collected by L. H. Weld) 



Dipt. T r y p e t i d a2773 



Artemisia tridentata (sage bush) 



. Oval, budlike, flower gall the size of a pea. Felt '151, p. 271 



Itonid. Rhopalomyia tridentatae Rubs 



Fig. 244. 'D ia r t h- 

 ronomyia Deci- 

 de n t a 1 i s Felt. Galls 

 on A. hetero- 

 p h y 11 a. (Original) 



Fig. 245. Diarthrono- 

 myia artemisiae Felt. 

 Several types of spongy gall, 

 one in section. (Original) 



Ovate, hard, thick-walled, yellowish brown bud gall, length 1.5 cm, diameter 

 .8 cm. (Collected by L. H. Weld) 



Dipt. Try pet id a2775 



Flask-shaped leaf gall, length 4 mm, diameter 2 mm. Fig. 247. Felt 'i6f, p. 185 



Itonid. Wormwood flask gall, Rhopalomyia ampullaria 



Felt 

 Oval, grayish or almost black, solitary or clustered gall on the under side of the 

 leaves, length 1.5 cm. Fig. 248. Felt 'i6f, p. 194 



Itonid. Diarthronomyia occidentalis Felt 

 Globose, variable, monothalamous or polythalamous leaf bud or rosette galls, or 

 a bladdery gall arising from the leaf, pubescence variable, dimensions 3 to 15 

 mm. Fig. 245. Felt 'i6f, p. 193 



Itonid. Diarthronomyia artemisiae Felt 



