468 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 4 



Rhus (sumac) 



Subglobular flower bud gall, diameter, 3 mm Asphondijlia inlegrifolice Felt. 



Stunted heads or curled leaves Arthrocnodax rhoina Felt. 



Subcortical stem gall Ceddomyia sp. 



Globose root galls Dasyneurd rhois Coq. 



RiBES (currant, gooseberry) 



Arrested buds (gooseberry) Rhopaloinyia grossularicB Felt. 



Gall undescribed, on R. menziesii Phyiophaga calif ornica Felt. 



Red, prematurely ripe fruit (?) Dasyneura grossulariae Fitch. 



Irregular, dark brown blister gall, diameter, 3 mm.; on R. Imigifolum. 



Cecidoimjia sp. 

 RiviNA (rouge-plant) 

 Reared from bud gall Schizomyia rinnoe Felt. 



RoBiNiA (common locust) 



Folded young leaflets Dasyneura pseudacaciae Fitch. 



Rolled leaf margins Obolodiplosis orhiculata Felt. 



Rosa (rose) 



Curled or folded terminal leaves Dasyneura ? rosarum Hardy. 



Rose buds Dasyneura rhodophaga Coq. 



Rose buds Clinodiplosis rosivora Coq. 



Apical, loose bud or rosette gall, length, 2 to 2.5 cm Rhabdophaga rosacea Felt. 



RuBUS (blackberry) 



Reared from blossoms Dasyneura rubifloroe Felt. 



Warty, pruinose leaf gall 1 to 3 cm. long Lasioptera farinosa Beutm. 



Marginal leaf roll, length, 4 to 6 cm Camptoneuromyia rubifolia Felt. 



Subglobular, filamentous vein gall on R. nigrobaccus. .Ceddomyia sp. {muscosa Steb.) 

 Irregular, subcortical stem gall, length, 2 cm Lasioptera nodulosa Beutm. 



RuDBECKiA (cone flower) 



Irregular, subglobular apical gall, diameter, 4 cm Asphondylia conspicua O. S. 



Deformed, enlarged florets, the affected florets leafy. . .Ceddomyia rudbeckioe Beutm. 



Nodular stem gall Ceddomyia sp. 



Undetected gall, possibly from the unmodified stem. . . .Lasioptera rudbeckia: Felt. 



RuMEX (dock) 



Reared from deformed, reddish seeds Contarinia rumids Loew. 



Reared from same gall Lestodiplosis rumids Felt. 



Salix (Willow) 



Fruit Galls 

 Enlarged seeds, reddish brown Ceddomyia, sp. 



Leaf Galls 



Fusiform pod or curled leaves, length, 10 mm Dasyneura salicifolia Felt. 



Closely rolled terminal leaves Rhabdophaga plicata Felt. 



Yellowish, red spotted, flattened gall, diameter, 2 to 3 mm. 



Oligotrophus salidfolius Felt. 



