122 PROCEEDINGS OF THE NATIONAL MUSEUM vol.68 



wAilgediicola. The type of cavicola Ashmead seems to the writer 

 to be the same as mulgediicoJu. In certain positions the face shows a 

 median ridge and in each case the hind basitarsus is equal to the 

 remaining segments. 



The writer reared flies from Lactuca stems at Evanston, 111., 

 which agree with types of rrmlgediicola Ashmead and which were 

 determined by Beutenmiieller as hicolor Gillette. 



AULACIDEA NABALI (Brodie) 



This species which forms galls at the b;«se of the stem of Prenan- 

 thes alba was described from Toronto and has been reported from 

 Quebec and Massachusetts. The writer has collected galls at Evans- 

 ton, 111., and reared the adults in numbers June 8-11, 1018. The 

 American museum has a gall from Nyack, N. Y. (Zabriskie). After 

 publishing the description of the species in 1892 Brodie collected 

 more galls and reared adults June 10-18, 1892, and in 1893 they 

 emerged June 1—19, 177 males and 151 females. 



AULACIDEA PODAGRAE (Bassett) 



This species has been reared at Wilmette, 111., the flies emerging 

 the first week in June. It makes rounded swellings at the nodes 

 scattered along the stem of Lactuca canadensis and its cells also seem 

 sometimes to be scattered in the pith without external evidence of 

 a gall. Brodie collected the nodular gall at Toronto. Cells in the 

 pith without external swelling were common at East Falls Church, 

 Virginia, in fall of 1923. 



AULACmEA TUMmA (Bassett) 



The spindle-shaped leafy swellings of the stem of Lactuca cana- 

 densis collected at Wilmette, 111., in March gave adults May 4-June 

 1, 1907. In 1908 the flies began to emerge May 20 and in 1913 they 

 were emerging in May 30. In 1913 they emerged April 15-May 15. 

 At Washington, D. C, flies began to emerge May 1. Brodie col- 

 lected galls at Toronto, adults emerging June 8, 1892. 



ANTISTROPHUS PISUM Walsh 



This species is here recorded from the following unpublished 

 localities: Greely, Nebr. (J. Q, Rood) ; Hebron, N. Dak.; Mandan, 

 N. Dak. (H. F. Bain); Belford, S. Dak.; Garden City, Kans. 

 (C. H. Popenoe) ; and Rexford, Kans. At the latter place the 

 writer found the galls very numerous on roadside plants on October 

 1, but they were still green and too immature for rearing. 



