734 Cecidomyiidae 



M. populifolia Felt. Albany, Sep 3, reared from bullet-like swellings at the base 

 of poplar leaves. 



M. reducta Felt. Karner, Jl 5, on hard pine. 



M. robusta Felt. Albany, Je 11. 



M. rotundata Felt. Newport, Jl 20. 



M. silvana Felt. Nassau, Je 14, on hemlock. 



M. tenuitas Felt. Poughkeepsie, Je 14, in a trap lantern. 



M. tsugae Felt. L. Clear, Je 7, on hemlock. 



M. variabilis Felt. Keene Val., Sep 4, Not; Nassau, Jl 24. 



Prodiplosis Felt 



P. floricola Felt. Albany, Aug 15, reared from somewhat enlarged, reddened flowers 

 of the meadowsweet {Spiraea salicifolia) ; Karner, Aug 15, reared from en- 

 larged blossoms of virgin's-bower {Clematis virginiana). 



Caryomyia Felt 



C. antennaria Wheeler. Little Falls, Sep, producing gall on Antennaria plant agini folia. 

 C. antennata Felt. Produces one of the common hickory leaf galls. Albany and vie. 



Probably widely distributed. 

 C. caryae O.S. Produces a gall on hickory. Scarsdale, Jl ; Hudson Falls, Sep ; vie. 



Albany; Mt. Kisco, Jl 2; vie. NYC. Probably widely distributed. 



C. caryaecola O.S. Produces a very slender, subglobose gall usually thickly clustered 

 along the midrib of hickory leaves. Hamburg, Oct 17, on bitternut hickory. 

 Appears to be relatively scarce. 



C. consobrina Felt. Produces a small, thin-walled hickory leaf gall. Nassau. 



C. glutinosa O.S. This is the name given to a larva living on the under surface of 



a hickory leaf, exposed except for the protection afforded by a viscid secretion. 



Vic. Albany and NYC, scarce. 



C. holotricha O.S. Occurs commonly about Albany and NYC, and appears to be 

 widely distributed. 



C. inanis Felt. Nassau, Ap 29, reared from a hickory leaf gall having a more or 

 less well-developed, empty chamber above the inhabited cavity. 



C. nucicola O.S. Produces swellings in the green husks of shagbark hickory. 

 Rhinebeck, Aug 9, 1860, OS. 



C. persicoides Bt. Produces a common, rather large, irregular, monothalamous, 

 hairy gall on hickory, frequently 6 or 7 mm. in diameter and usually clustered 

 along the midrib. Albany ; Barrytown, on gall, Sep ; vie. NYC ; probably 

 widely distributed. 



C. sanguinplenta O.S. Vic. Albany and NYC, the galls being occasionally numerous. 



C. similis Felt. Nassau, reared the latter part of Ap and in early May from sup- 

 posedly typical galls of Caryomyia caryae O.S. 



C. thompsoni Felt. Produces a yellow, green, or brown, melon-shaped gall with a 

 depressed center, apparently taken by LHWeld at Ithaca. 



C. tubicola O.S. Produces a characteristic, tubular, common hickory leaf gall which 

 appears to be widely distributed throughout the State ; Canandaigua L., Sep. 



