58 FAUNA OF NEW ENGLAND. 



D. paxthenocissi (Stebbins), 09-44. Woodbine Vein-gall. 



Mass. — Springfield iStehhins). 



Tumid irregular mid-rib galls on woodbine, Parthenocissus 

 quinquefolia (Felt, 15-161 and 18-165). 



D. purpurea Felt, 08-349. Joe-pye-weed Midge. 



Mass. — Worcester, Sept. {Thompson); Martha's Vineyard, Aug. 



25. 



An oval blossom bud-gall on Joe-pye-weed, Ewpatorium pur- 

 pureum (Felt, 15-181 and 18-190). 



D. radifolii Felt, 09-289. 



Mass.— Magnolia, Apr. 16-12, 1909 {Cora H. Clarke). 



Oval irregular greenish gall composed of clusters of root-leaves 

 on Solidago puberula (Felt, 15-178 and 18-193). 



D. rhodophaga (Coquillett). Rose-bud Midge. 



Mass. — Boston (1894). R. I. — A heav^^ infestation in 1911. 



The larva inhabits the rose buds and developing leaves (Felt, 

 15-130 and 18-140). 



D. rosarum Hardy. Rose-leaf Midge. 



Mass. — Worcester, July {Thompson); Magnolia {Cora H. Clarke). 

 Curls or folds the terminal leaves (Felt, 15-166 and 18-148). 



D. salicifolia Felt, 07-12 and 15-169. Willow-pod Midge. 

 Mass. — Magnoha, June 1 {Cora H. Clarke). 

 A fusiform pod or curled leaves (Felt, 18-32). 



D. semenivora (Beutenmueller) , 07-390. Violet-seed ]Midge. 

 Mass. — Springfield {Stehhins) . 



Forming irregular deformed fruit of the violets (Felt, 15-166 

 and 18-172). 



D. serrulatae (Osten Sacken). Alder-bud Gall. 



Mass. — Auburndale; Worcester {Thompson); Springfield, Apr. 



{Stehhins) . 



Subcorneal bud-gall on Alnus rugosa (Felt, 15-186 and 18-50). 



D. smilacifolia Felt, 11-480 and 15-147. Smilax-leaf Midge. 

 Mass.— jNIagnolia, Aug. and Sept. {Cora H. Clarke). 

 Young leaves are rolled longitudinally (Felt, 18-28). 



D. toweri Felt, 09-289 and 15-187. 



Mass. — Magnolia, Sept.-Oct. {Cora H. Clarke). 



Axillary bud-galls on St. John's-wort, Hypericum mutilum 

 (Felt, 18-171). 



D. trifolii (Loew). Clover-leaf Midge. 

 Mass. — Stow; Boston. 



Folds and discolors the leaves of white clover (Felt, 15-143 and 

 18-154). 



