44 PROCEEDINGS OF THE NATIONAL, MUSEUM vol.68 



cinerea, cateshaei, texana, and lawifolia and the following localities 

 where the galls have been seen : Ithaca, N. Y. ; Evanston, Wilmette, 

 Winnetka, Glen Ellyn, and Kingston, 111. ; Kilbourn City and Dele- 

 van (D. Watt), Wis.; Webster Groves, Ironton, and Poplar Bluff, 

 Mo.; Little Rock, Hot Springs, and Texarkana, Ark.; Hugo, Okla. ; 

 Palestine, AVharton, Victoria, and Boerne, Tex.; Troy and Dothan, 

 Ala.; Cottondale, Marianna, River Junction, Madison, Live Oak, 

 Gainesville, and Ocala, Fla. ; Bluemont, Va. ; Kanawha Station 

 (A. D. Hopkins), W. Va., and Washington, D. C. Brodie collected 

 galls on Q. coccinea at Toronto. 



Galls collected at Evanston in fall of 19 IG gave adults September 

 22, 1917, but a few galls still contained larvae indicating that the 

 emergence is distributed over at least two seasons. From galls col- 

 lected in fall of 1917 at Ironton flies issued before October 10, 1918, 

 and some still contained larvae. Galls from Poplar Bluff in fall 

 of 1917 gave flies October 10, 1918. From galls collected at Vic- 

 toria, Tex., J. D. Mitchell reared flies November 20, 1906. The 

 Ashmead types emerged September G and October 12 and Bassett's 

 type flies also emerged in the fall. 



DRYOCOSMUS PIPEROIDES (Bassett) 

 Andricus piperoides Bassett, Trans. Amer. Ent. Soc, vol. 26, 1900, p. 314. 



Galls of this species were noted on the leaves of Quercus maxinia at 

 Evanston, Wilmette, Ravinia, Fort Sheridan, and New Lenox, 111.; 

 at Medina and Ithaca, N. Y. ; and at Bluemont, Va. Some speci- 

 mens sent from Cape Porpoise, Me., were determined by the writer 

 as those of this species. Galls collected at Evanston in October, 

 191G, contained both pupae and larvae on September 17, 1917, and 

 adults and larvae on November 15. Adults emerged April 22 to 

 May 11, 1918. The emergence is evidently distributed over at least 

 two seasons. From galls collected by William Beutenmueller at 

 Fort Lee, N. J., in the fall of 191G and sent to the writer for rearing 

 flies emerged April 6, 11, and May 11, 1918. He writes that the 

 galls were very common in the fall of 1916 and again in 1918, but 

 none was noticed in 1917. Brodie collected galls at Toronto, but 

 failed to rear the adults. 



As the Bassett types have simple claws, a malar groove, meso- 

 scutum bare and shining and head sculptured the species is here 

 transferred to Dryocosmus. 



DRYOCOSMUS RILEYI (Ashmead) 



Andricus rileyi Ashmead, Proc. U. S. Nat. Mus., vol. 19, 1896, p. 121. 



This species was described from St. Louis, Mo., from Q. maxima 

 only. The writer has collected the galls on ten other oaks as fol- 



