DIPTERA. 61 



L. vitis Osten Sacken. 



Mass. — Springfield, June, on wild grape (Stebhins). Conn. — . 

 Forming galls on the leaves and tendrils of the grape. 



L. virginica Felt, 09-287 and 18-154. 

 Mass. — Magnolia, Oct. 10 (Clarke). 



A stem-gall on the marsh St. John's-wort (Hypericum vir- 



ginicum) . 



Neolasioptera Felt. 



N. cornicola (Beutenmueller), 07-394. 

 R. I. — Providence. 



Irregular stem-gall on Cornus stolonifera. 



N. erigerontis (Felt), 07-163. Horseweed-stem Midge. 



Mass.—. 



Fusiform stem-gall on horseweed (Erigeron canadensis). 



N. perfoliata (Felt), 07-156 and 18-189. Boneset-stem Midge. 

 Mass. — Worcester; Springfield. Conn. — . 



Oval stem-galls on boneset (Ewpatorium perfoliatum) . 



N. ramuscula (Beutenmueller), 07-392; Felt, 18-197 (Cecidomyia 



strombiligemma Stebbins) . 

 Mass.— Worcester; Springfield. Conn.—. 



Fusiform stem-galls on several species of asters. 



N. sambuci (Felt), 06-131 and 18-183. Elder-stem Midge. 

 Mass. — Worcester; Springfield, May and June (Stebbins). 

 R. I. — . Conn. — . 



An irregular gall on the stems of elder. 



N. vitinea (Felt), 07-153 and 18-178. 

 Mass. — Worcester (Thompson). 

 A conical petiole-gall on grape. 



Asteromyia Felt, 10-348. 



A. agrostis (Osten Sacken). 

 N. H.— Milford (Whitney). 

 Mass. — Worcester (Thompson); Cheshire. 



Forms a flattened cone-shaped gall on grass (Muhlenbergia) . 



A. asterifolia (Beutenmueller), 07-395; Felt, 18-223. 

 Mass.— Mt. Tom, Oct. 17 (Stebbins). 



Circular yellowish-white dark-margined galls on Aster lateri- 

 folius. 



A. carbonifera Felt, 18-202. 



Me.— Mt. Desert. 



Mass. — ^Springfield (Stebbins); Auburndale, Aug. 7; Worcester 



(Thompson) . 



Oval black ocellate blister-galls on the leaves of Solidago grami- 

 nifolia. The gall was named Cecidomyia carbonifera by Osten 

 Sacken. 



