17- 



NEW YORK STATE MUSEUM 



Globular stalk swellings, length 6 to lo mm. Beutm. '08, p. 74 



Itonid. Cecidomyia triadenii Beutm. 

 Subglobose stem gall, length i cm. Felt 'oge, p. 287 



Itonid. Lasioptera virginica Felt 

 An erineum of very fine and numerous black spots on the upper leaf surface 

 of H. V i r g i n i c u m. Chadwick '08, p. 149 



Acarid. Eriophyes sp. 



Fig. 180. Mal- 

 low stem midge, 

 Neolas ioptera 

 h i b i s c i Felt (Au- 

 thor's illustration) 



Fig. 181. As- 

 phondylia 

 b e t h e li Ckll. 

 Irfested fruit. 

 (Original) 



Fig. 182. Cactus midge, 

 Itonida opuntiae Felt, 

 showing characteristic aopear- 

 jince of infested lobe. (Original) 



Violaceae (violet family) 



Viola (violet) 

 Deformed fruit, irregular " plumlike," length i cm. Felt 'i5e, p. 166 



Itonid. Violet fruit midge, Dasyneura semenivora Beutm. 

 Rolled, discolored leaves of V. o d o r a t a. Felt '07a, p. 59 



Itonid. Violet leaf midge, Phytophaga violicola Coq. 

 Reared from red spider on violet leaves 



Itonid. Arthrocnodax sp. a2346 



