138 NEW YORK STATE MUSEUM 



Face dark fuscous; mesonotum dark brown. Scutellum reddish 

 brown, postscutellum darker. Abdomen pale yellowish with dark 

 brown mesially on the basal segment. Legs a nearly uniform pale 

 reddish straw color, tarsi slightly darker. 



Taken on hickory at Nassau, N.Y. June 14, 1906. 



Type Cecid. 261, N.Y. State Museum. 



Cecidomyia fraxini n. sp. 



Male. Length i mm. Antennae nearly twice the length of the 

 body, sparsely haired, light brown, 14 segments. Mesonotum 

 nearly uniform. dark brown, submedian lines yellowish. Scutellum 

 yellowish laterally, dark orange apically, postscutellum a little 

 darker. Abdomen dark reddish, slightly lighter dorsally on the 

 second and third abdominal segments. Legs nearly uniform dark 

 brown, lighter ventrally. , 



Taken on ash at Albany, N.Y. June 10, 1906. 



Type Cecid. 179, N.Y. State Museum. 



Cecidomyia flavomarginata n. sp. 



Male. Length .75 mm. Antennae \ longer than the body, 

 thickly haired, light brown, 14 segments. Mesonotum yellowish 

 brown, the broad median area thickly clothed with yellowish 

 hairs. Scutellum reddish, the postscutellum probably concolorous. 

 Abdomen light brown, anterior segments margined posteriorly 

 with yellowish, posterior segments reddish. Coxae yellowish trans- 

 parent tinged with reddish apically, femora yellowish transparent, 

 tibiae slightly darker, tarsi light brown. 



Taken on clover at Albany, N.Y. June i, 1906. 



Type Cecid. 109, N.Y. State Museum. 



Cecidomyia triangularis n. sp. 



Male. Length i mm. Antennae longer than the body, sparsely 

 clothed with coarse hairs, brown, 14 segments. Face yellowish; 

 mesonotum brownish yellow, submedian lines obscure. Scutellum 

 reddish. Abdomen brownish yellow, ovipositor pale. Coxae 

 white, femora brown above, paler beneath, tibiae a little paler 

 than the femora, tarsi brown. 



Taken on Solidago at Lebanon, N.Y. August 26, 1906. 



Type Cecid. 763, N.Y. State Museum. 



