214 NEW YOKK STATE MUSEUM 



1864 Walsh, B. D. Ent. Soc. Phila. Proc, 3:590-91 (Cecidomyia 

 cornu); 591-95 (Cecidomyia siliqua); 595-98 (Cecidomyia) 



1867 • Ent. Soc. PhUa. Proc, 6:224-25 ( C. siliqua) 



1870 Riley, C. V. Amer. Ent., 2:214 (Cecidomyia) 



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



1885 Riley, C. V. Bui. 5, U. S. Dep't Agric, Bur. Ent., p. 16 ( E n c y r t u s 

 cecidomyiae Riley parasite of, Cecidomyia) 



1890 Cockerell, T. D. A. Entomologist, p. 278-79 



1892 Beutenmueller, "William. Bui. Amer. Mus. Nat. Hist., 4:268 

 (Cecidomyia) 



1895 Baker, C. F. Ent. News 6:173 (Ft. Collins, Col., Cecidomyia 

 siliqua) 



1903 Cook, M. T. Ohio Univ. Bui., set. 7, no. 20, p. 422 (Cecidomyia) 



1904 Beutenmueller, William. Amer. Mus. Nat. Hist. Guide Leaflet no. 16, 

 p. 29 (Cecidomyia) 



1904 Cook, M. T. Dep't Geol. & Nat. Res. Ind., 29tli Rep't, p. 840 (C. 

 siliqua) 



1906 Felt, E. P. Ins. Affect. Prk. & Wdld. Trees, N. Y. State Mus. Mem. 8, 

 V. 2, p. 745 (Rhabdophaga siliqua) 



1906 N. Y. State Mus. Bill. 104, p. 122-25 (Rhabdophaga) 



1906 Cockerell, T. D. A. Ent. News, 17:398 (Rhabdophaga) 



1907 Jarvis, T. D. 37th Rep't Ent. Soc. Ont., p. 68 (Cecidomyia) 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 371 (Mayetiola) 



1909 Brodie, William. Can. Ent., 41:251-52 (Rhab do ph a ga sili qua 

 = R. rigidae O. S.) 



1909 Felt, E. P. Ent. Soc. Ont., 39th Rep't, p. 45 (Mayetiola) 



1909 Jarvis, T. D. Ent. Soc. Ont., 39th Rep't, p. 92 (Mayetiola) 



1910 Cook, M. T. Mich. Geol. & Biol. Surv. Pub. i, Biol. Ser. i, p. 

 (Cecidomyia) 



1910 Stebbins, F. A. Springf. Mus. Nat. Hist. Bui. 2, p. 5, 7, 10 (Mayetiola) 



The gall produced by this species on willow is very characteristic, 

 relatively common in New York State at least and appears to be 

 widely distributed, having been received from Aweme, Manitoba, 

 Logan, Utah and St Louis, Mo., not to mention its somewhat gen- 

 eral occurrence in the eastern states. The adults appear in the 

 latitude of Albany during the early part of May. The species 

 winters as reddish larvae in the galls. There is but one generation 

 annually. The reddish brown males may be recognized by the 24 

 antennal segments, the fifth with a stem one-half the length of the 

 basal enlargement. The female has 24-26 sessile segments, the 

 fifth with a length one-half greater than its diameter. The wing is 

 illustrated on plate 1 7 , figure 2 ■ 



This midge was originally described b}" Fitch in the American 

 Quarterly Journal of Agriculture and Science, as Cecidomyia 

 s a 1 i c i s. Later, Osten Sacken proposed this specific name for the 

 preoccupied s a 1 i c i s. This species was apparently redescribed by 

 Walsh as Cecidomyia siliqua. Kertesz, in 1902, makes 



