Cecidomyiidae 735 



Arthrocnodax Riibsaamen 



A. acerina Felt. L. Clear, Je 7, on maple. 



A. cincta Felt. Albany, Je 13. 



A. fenestra Felt. Nassau, Jl 22. 



A. filicis Felt. Karner, Je 4, on fern; Nassau, Jl 9, in a trap lantern. 



A. fraxini Felt. Albany, Je 10, on ash. 



A. incisa Felt. Albany, May 21. 



A. obscura Felt. Karner, Je 26, on blueberry. 



A. rhoina Felt. Albany, Aug 27, reared from curled leafy heads of sumac. 



A. rufa Felt. Albany, Jl 24, on hickory. 



A. sambucifolia Felt. Albany, Sep 13, reared from rolled elder leaves. 



HORMOMYIA Loew 

 H. alexanderi Felt. Johnstown, Jl 7, swept from palustral grasses, Alex. 

 H. americana Felt. Nassau, May 28 and 31, in a trap lantern. Appears to be fairly 



common. 

 H. canadensis Felt. Reared in early Ap from a subglobose, greenish or deep reddish, 



lipped leaf gall on shadbush. Fairly common in vie. of Albany. 

 H. clarkei Felt. L. Placid, inhabiting a terminal bud gall on Spiraea salicifolia. 

 H. consobrina Felt. Albany, Je 6, on Azalea. 

 H. crataegifolia Felt. Reared in early Ap from a cockscomb leaf gall on Crataegus. 



A very local species occurring in the vicinity of Nassau, though probably 



rather widely distributed; L. Placid Club, Jl ; Newport, Jl, GSGraves; LI: 



Orient, Aug 12. 

 H. dilatata Felt. Newport, Je 27, in a trap lantern. 

 H. incisa Felt. Nassau, Jl 8, in a trap lantern. 



H. maxima Felt. Johnstown, Je 8, swept from palustral grasses, Alex. 

 H. palustris Felt. Ithaca, May 20, captured in considerable numbers on a lake marsh. 



MONARTHROPALPUS Riibsaamen 



M. buxi Lab. A European species which has become well established in several 

 LI localities and is best known because of its injury to the foliage of 

 ornamental box. Westchester Co, Jan 9, Atzvood; New Rochelle, May; LI: 

 Mineola, Ap 2, larvae; Woodlawn Cemetery, Ap 16, larvae, Bt; Roslyn, May, 

 Aug; Sea Cliff, Ap 8, Levison. 



Hyperdiplosis Felt 

 H. insolens Felt. Keene Val., Aug 26, Not. 

 H. lobata Felt! Karner, Je 4, on white clover. 



GlARDOMYIA Felt 



G. emarginata Felt. Newport, Jl 2, in a trap lantern. 

 G. hudsonica Felt. Poughkeepsie, Je 9, in a trap lantern. 



G. menthae Felt. Karner, Jl 27, reared from mint (Mentha canadensis) bearing 

 pustule-like galls on the stem. 



