722 Cecidomyiidae 



D. trifolii Lw. Newfane, Je 2; W. Haverstraw, W. Nyack, Je 14; Wappmger 

 Falls, Je 28; Ghent, Jl 29. Is probably moderately common where white 

 clover (Trifolium repcns) has been growing for a series of years. The larvae 

 prevent the leaves from unfolding, and produce a yellowish or brownish dis- 

 coloration of the affected parts. 



D. tumidosae Felt. Reared in small numbers from jars containing numerous galls 

 collected at Highland and generally identified as those of Cecidomyia pellex 

 O.S. 



D. unguicula Felt. Nassau, Jl-Aug. 



D. vernalis Felt. Nassau, Je 14, on New Jersey tea. 



D. vitis Felt. W. Nyack, Jl 16, reared from the common tomato gall of the grape, 

 and presumed to be that of Lasioptera vitis O.S. 



Lasiopteryx Felt 



L. carpini Felt. Albany, Je 21, on ironwood or blue beech. 



L. coryli Felt. W. Nyack, Jl 11, reared from a fuzzy, wrinkled, fold gall at the 



base of hazel leaves. 

 L. flavotibialis Felt. Nassau, May, reared from larvae in a partly decayed oak 



stump. 



Neuromyia Felt 

 N. minor Felt. Nassau, Jl, on a window. 



Cystiphora Kieffer 



C. canadensis Felt. Inhabits a blister leaf gall on white lettuce or rattlesnake root. 



LI: Orient, Aug, gall on Prenanthes. 

 C. viburnifolia Felt. Produces a very common, inconspicuous blister leaf gall on 



hobblebush. Albany. 



Rhizomyia Kieffer 



R. absobrina Felt. Albany, Jl 11 and 26, reared from a jar containing Crataegus 



leaves bearing cylindric, fimbriate, unicellular galls. 

 R. cerasi Felt. Albany, Je 21. 

 R. cincta Felt. Albany, Jl 30, on Cornus. 

 R. hirta Felt. Rensselaer, Aug 17, reared from reddish, blister-like leaf mines on 



Crataegus. 

 R. hispida Felt. Albany, J I 6. 

 R. ungulata Felt. Albany, Jl 6. 

 R. vitis Felt. Albany, Jl 13, reared from the tomato grape gall, Lasioptera vitis. 



Tribe LASIOPTERARIAE 

 Lasioptera Meigen 



L. abhamata Felt. Karner, Je 4. 



L. argentisquamae Felt. W. Nyack, Jl, reared from Solidago bearing a character- 

 istic, adhesive leaf gall. 

 L. basiflava Felt. Albany, Jl 30, on grape. 



