246 NEW YORK STATE MUSEUM 



haired, pale or fuscous yellowish; 20 segments, the fifth with a stem 

 one-fourth longer than the basal enlargement, which latter has a 

 length nearly twice its diameter and tapers at both extremities; 

 terminal segment produced, subcylindric, tapering, obtuse. Palpi; 

 the first segment short, stout, subquadrate, with a length about 

 one-half greater than its diameter, 

 the second long, stout, about three 

 times the length of the first. 

 Mesonotum reddish brown, the sub- 

 median lines thickly haired. Scu- 

 tellum reddish brown with numer- 

 ous long setae apically, postscutel- 



lum fuscous. Abdomen fuscous M 6o Rhopalomyia ca _ 

 yellowish, thick y haired. Wmgs pitata; male pal enl d 



hyaline, costa light brown. Hal- ( or im na i) 

 teres yellowish basally, fuscous 



apically. Legs a variable fuscous yellowish, the distal tarsal 

 segments usually lighter; claws long, slender, evenly curved, the 

 pul villi about as long as the claws. Genitalia; basal clasp segment 

 long, stout; terminal clasp segment short, stout, greatly swollen 

 basally; dorsal plate short, broad, apparently broadly rounded; 

 ventral plate long, narrow, narrowly rounded. Harpes stout, 

 narrowly rounded, convolute. 



Female. Length 3 to 4 mm. Antennae extending to the fourth 

 abdominal segment, sparsely haired, reddish brown; 21 segments, 

 the fifth subsessile, with a length about twice its diameter; terminal 

 segment partly fused with the preceding, reduced, conical. Palpi; 

 the first segment short, stout, subquadrate, with a length about 

 twice its diameter, the second more than twice the length of the 

 first, tapering at both extremities and thickly clothed with stout 

 setae. Mesonotum yellowish brown, the submedian lines thickly 

 haired. Scutellum reddish brown, postscutellum fuscous salmon. 

 Abdomen fuscous reddish brown, the incisures and pleurae reddish 

 salmon; ovipositor fuscous yellowish. Wings hyaline, costa dark 

 brown. Halteres yellowish basally, fuscous apically. Coxae and 

 base of femora reddish yellow, distal portion of femora, tibiae and 

 tarsi brown or black; the pul villi longer than the claws. Ovipositor 

 about two-thirds the length of the abdomen, the terminal lobes 

 narrowly oval. Type Cecid. ai75o. 



Rhopalomyia solidaginis Loew. 

 1862 Osten Sacken, C. R. Mon'. Dipt. N. Am., 1: 194-95 (Dasyneura) 

 1874 Glover, Townend. MS Notes from My Journal, p. 68 (Cecidomyia) 

 1892 Beutenmueller, William. Am. Mus. Nat. Hist., 4:271 (Cecidomyia) 

 1900 Smith, J. B. List Insects N. J., p. 620 (Cecidomyia) 

 1904 Beutenmueller, William. Am. Mus. Nat. Hist. Guide Leaflet 16, p. 31 

 (Cecidomyia I 

 [905 Cook,M.T. IVp'i Geol.& Nat. Res., Ind., 29th Rep't,p.842 (Cecidomyia) 

 1907 Jarvis, T. D. Ent. Soc. Out., 37th Rep't, p. os (Cecidomyia) 



!()()(> Ent. Soc. Ont., 39th Rep't, p. 81 (Cecidomyia) 



[910 Stebbins, F. A. Springf. Mus. Nat. Hist. Bui., p. 50 (Dasyneura) 



