REPORT OF THE STATE ENTOMOLOGIST I914 25I 



pale yellowish. Legs a nearly uniform, fuscous straw; claws long, 

 slender, evenly curved, the pul villi longer than the claws. Genitalia; 

 basal clasp segment long, slender; terminal clasp segment short, 

 stout, greatly swollen near the middle; dorsal plate short, broad, 

 broadly and roundly emarginate ; ventral plate long, tapering distaUy , 

 broadly and roundly emarginate. Harpes convolute, narrowly 

 rounded. Type Cecid. 529. 



Rhopalomyia anthophila O. S. 



1869 Osten Sacken, C. R. Amer. Ent. Soc. Trans., 2: 302 (Cecidomyia) 

 1892 Beutenmueller, William. Amer. Mus. Nat. Hist. Bui. 4, p. 272 

 (Cecidomyia) 

 1904 Cook, M. T. Ohio St. Univ. Bui. 17, p. 116 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 364, 365 



1909 Ottawa Nat., 22: 246 



1910 Stebbins, F. A. Springf. Mus. Nat. Hist., Bui. 2, p. 50 



The gall of this species is quite different from that produced by 

 R. racemicola, in that it is more or less cylindric and densely 

 haired. This species appears to be much more local than 

 R. racemicola, since a cluster of galls taken on Solidago 

 canadensis at Asheville, N. C, September 16, 1906 was lim- 

 ited to one portion of a flower head, and careful searching failed to 

 disclose any others in the near vicinity. Galls of this species were 

 taken in the vicinity of Albany, N. Y., adults appearing about the 

 middle of September. This midge was reared by the late Dr C. V. 

 Riley in what he designates as seed pods of Solidago taken Sep- 

 tember II, 1876 at Bushburg, Mo. Torymus sp. was reared from 

 this midge. 



Gall. The deformity is a transformed flower head about 6 mm 

 long, 3 mm in diameter, pale green, densely pubescent, nearly 

 cylindric, the tip being somewhat smaller than the base. Osten 

 Sacken states that the inside of the gall is hollow, divided into 

 two compartments by a deHcate, funnel-shaped membrane placed 

 near the middle of the cavity, point upward, the larva occurring 

 at the bottom of the lower compartment. See Plate 15, figure i, 

 and also New York Museum Bulletin 175, plate i, figure 3, for a 

 colored illustration. 



Male. Length 2.5 mm. Antennae as long as the body, sparsely 

 haired, fuscous yellowish; 18 to 20 segments, the fifth with a stem 

 as long as the basal enlargement, which latter has a length one- 

 half greater than its diameter, tapering; terminal segment slender, 

 with a length about three times its diameter, acute. Palpi; the 

 first segment stout, subquadrate, with a length about one-half 

 greater than its diameter, the second long, slender, over twice the 



