Cecidomyiidae 725 



N. eupatorii Felt. Canandaigua, Sep ; SI, reared from an oval or subglobular stem 



gall with a length of 1.5 cm. and a diameter of 1 cm., on white snakeroot 



(Eupatorhim urticae folium). 

 N. flavomaculata Felt. Albany, Jl 11. 

 N. flavQventris Felt. Karner, Jl, flying about hard pine. 

 N. hamamelidis Felt. Albany, Je 10, on witch-hazel. 

 N. hamata Felt. Canandaigua, Sep; Albany, Ap-May, reared from an oval, 



polythalamous stem gall 2 cm. long and 5 cm. in diameter on an unknown 



weed. 

 N. helianthi Felt. Highland, Sep 3, from a gall on Helianthus strumosus supposed 



to be that of Asphondylia globulus O.S. 

 N. hibisci Felt. SI, Ap 25, reared from slightly enlarged stems of the swamp rose 



mallow, Hibiscus moscheutos. 

 N. liriodendri Felt. Albany, Je 8, on a tulip tree. 

 N. perfoliata Felt. Buffalo; Nassau. Midges in May. Produces an oval stem gall 



with a length of 1 to 1.5 cm. and a diameter of 0.5 cm., on boneset. 

 N. ramuscula Bt. Produces a fusiform branch gall with a length of 1 cm. and a 



diameter of 4 cm., on several species of Aster. Hudson Val. ; probably widely 



distributed in State. 

 N. sambuci Felt. Produces an irregular, subcortical, polythalamous stem gall 2 to 



6 cm. in length on elder. Nassau ; NYC ; probably widely distributed in State. 

 N. sexmaculata Felt. Nassau, Je 14. 

 N. tenuitas Felt. Albany, Jl 30. 

 N. tiliaginea Felt. Nassau, Je 14, on basswood. 

 N. tripunctata Felt. Nassau, Je 30. 

 N. viburnicola Bt. Produces an irregular, subcortical swelling from 2 to 5 or 6 cm. 



long on the larger branches of arrowwood {Viburnum dentatum) . Vic. NYC, 



common. 

 N. vitinea Felt. Highland Falls; Albany; W. Nyack; vie. NYC, common; SI, 



Je 15, reared from a conical petiole gall on grape ; probably widely distributed 



in the State. The gall is about 1.5 cm. long and 0.5 cm. in diameter, and 



contains from two to four larvae in a long central chamber. 



ASTEROMYIA Felt 



A. abnormis Felt. Albany, Jl 24. 



A. albomaculata Felt. Jamesburg, reared from a diffuse, yellowish blister leaf gall 



3 to 4 mm. in diameter on Aster leaves ; Albany, adult captured on Solidago. 

 A. agrostis O.S. (Lasioptera muhlenbergiae Martin, and probably Lasioptera 



carbonitens Ckll.). Produces a somewhat cone-shaped, aborted apical gall on 



Muhlenbergia mexicana. Several localities in State. 

 A. asterifoliae Bt. Highland, reared Je-Jl from a circular, white-ringed blister 



leaf gall. 

 A. canadensis Felt. Albany, May 21. 

 A. carbonifera Felt. Produces an oval, characteristic, jet-black, blister leaf gall 



on the narrow-leaved Solidago, Soltdago graminifolia. Appears to be abundant 



in most localities where the food plant occurs. 

 A. convoluta Felt. Albany, Aug 11, reared from a loose, convolute tip gall on 



Solidago. 



