38 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 68 



DISHOLCASPIS GLOBULUS (Fitch) 



On Qiiercus alba these round bullet galls were seen at Glencoe, 

 Ravinia, Glen Ellyn, and Moline, 111. ; Cedar Rapids, Iowa ; Poplar 

 Bluff and Ironton, Mo.; Tuskahoma, Okla. ; Texarkana, Ark.; Troy, 

 Ala.; Marianna and River Junction, Fla.; Bluemont, Va. ; Blue 

 Hills, Mass.; Pitman (Bradley) N. J.; Syracuse (Crosby) and East 

 Hampton (Schradieck), N. Y. ; Elyria, Ohio. On rock chestnut 

 oak, Q. montana they were seen at Ithaca, N. Y. ; North East, Pa.; 

 Bluemont, Bedford County, and Falls Chuch, Va. In the Chicago 

 area the young galls appear in July, contain pupae September 23, 

 and adults emerge October 20-November 1. Brodie says the adults 

 emerge at Toronto from October 12-November 1 and at once com- 

 mence to oviposit in white oak twigs. Some which emerged Octo- 

 ber 17 lived until November 10 but none survived the winter. He 

 reared about two hundred without finding a male. He received galls 

 from Brainbridge, Muskoka, from which adults emerged at Toronto 

 on November 5. 



DISHOLCASPIS MAMMA (Walsh) 



« 



Galls on Quercus inacrocarfa are here recorded from the follow- 

 ing localities: Mandan (H. F. Bain), N. Dak.; Walnut Grove 

 (C. J. W.) and Becker (L. Haney), Minn.; Evanston, New Lenox, 

 Glen Ellyn, and Moline, 111.; Corinth (C. Barracks), Iowa; Cedar 

 Point, Kan.; Nebraska City, Nebr. ; Surry (C. Chupp), and Water- 

 loo, Ind. ; Manistee, Mich., and Medina, N, Y. On Q. hicolor at 

 Evanston, 111. On Q. lyrata similar galls yielding similar adults 

 at Hoxie and Texarkana, Ark., and Poplar Bluff, Mo. 



In the Chicago area the galls start about the middle or end of 

 July and some are full grown by end of August, adults emerging in 

 different years from October 20 to November 10. At Poplar Bluff 

 galls contained pupae October 8 and adults emerged November 13- 

 December 3. Brodie found the galls at Toronto on Q. macrocarpa^ 

 the adults emerging in 1896 from October 17 to November 6. Some 

 lived until November 22, but they do not survive the winter. In 

 order to determine the next season's galls he " put 25 females in a 

 muslin bag tied around a couple of low branches of burr oak from 

 which the leaves had fallen on November 10 and for some days 

 noted them ovipositing. They stood upon the tops of the buds 

 grasping them firmly, then curving up the abdomen they pushed the 

 ovipositor between the scales of the buds and remained a few 

 minutes but they do not place more than one to three eggs in a bud." 

 On May 30, 1897, he found numerous galls, the petiole or midvein 

 beginning to bulge. By July 1 they were full grown and adults 

 emerged July 11-17. " These galls were similar in form and texture 

 to galls of n. petiolicola from white oak, contained from 3-10 cells, 



