THE CANADIAN ENTOMOLOGIST 413 



LuTZ, A. — '09. Memorias do Institute Oswald Cruzo. Tomo 

 1, Faciculo II, pp. 124-146. 



L^UTZ AND Splendore. — '04. Centralblatt fiir Bakteriologie, 

 Bd. 42. Id., '08. Centralblatt fur Bakteriologie Bd 46, pp 311-315. 



Strickland, E. H.— '11. Biological Bulletin, Vol. 21, pp. 302- 

 338. Id., '13. Journal of Morphology. Vol. 24, pp. 43-105. 



NOTES ON SOME SPECIES OF CECIDOMYIID/E. 



BY WILLIAM BEUTENMULLER, NEW YORK. 



Dasyneura hirtipes Osten-Sacken. 



Cecidomyia hirlipes Osten-Sacken, Mon. Dipt. N. Am., Vol. I, 

 1862, p. 195; Glover, MSS. Notes, Dipt. 1874, p. 8; Bergenstamm 

 and Loew. Verb. zool. bot. Gesell. Wien., Vol. XXVI, 1876, p. 47. 



Dasyneura hirtipes Aldrich, Cat. N. Am. Dipt. 1905, p. 155. 



Male and Female.—Wea.d red, clothed with, red scales; anten- 

 na» brown. Neck red; thorax above, smooth, polished, blood-red, 

 blackish above with a few erect brown hairs, pleura marked with 

 black; scutellum red. Abdomen bright scarlet red with blackish 

 appressed scales. Legs wholly black; coxa? reddish. Wings with 

 a dense blackish pubescence. Halteres reddish or orange, the 

 club black. Expanse 5.5-6 mm. Length 3.5-4 mm. 



Gall. — Polythalamous, large bud-like and solid when im- 

 mature, with a number of aborted leaves surrounding it. When 

 mature, it is soft inside and filled with a white foam-like substance, 

 in which are a number of long, narrow, larval cells. When the flies 

 are ready to emerge, the gall bursts open and it is then of the ap- 

 pearance of a miniature cauliflower; the large white center sur- 

 rounded by the dark green leaves, giving it the appearance of that 

 plant. Diameter 50 to 25 mm. 



The gall is formed at the tip of stunted stalks of the fragrant 

 golden-rod (Solidago gramin if alia) in June and July. When old, 

 the white foam-like internal substance decays and the gall is then 

 hard, woody and hollow inside, with a large opening on top. It 

 remains on the bushes in this state over winter. I have collected 

 the gall of C. hirtipes at Fort Lee, New Jersey, late in June, from 

 which the adults began to emerge on July 6. 



December, 1913 



