PAGE 



Phytophagous and other CyclorrJiapJia 342-352 



Surphidir 342 



Tropidia quadrata Say 343 



Brachypalpus frontosu^i Loew 343 



Ceria icilUMoni Kahl 344 



EphydridiV: — 



Hydrellia scapularis Loew 345 



Drosoph illdcE 346 



Drosophila (Scaptomysa) adusia Loew 347 



Drosophila dimidmta Loew 34S 



Agro myzidw 348 



Agromyza pruni Grosseubaeher 349 



Agromyza tiliw Couden 351 



Agromyza angulata Loew 351 



Descriptions of Xew Illinois Dipt em 352-363 



Phoridw: — 



Platyphora flavofemorata, n. sp 353 



Anthomyidce: — 



Pogonomyia flavinervis, n. sp 356 



Geomyzidw: — 



Aplmniosoma quadrivittatum, n. sp 357 



Agromyzidw. — 



Agromyza aprilina, n. sp 359 



Chloropidce: — 



Gaurax Loew 360 



Key to species 360 



Gaurax flavidulus, n. sp 361 



Gaurax pallidipes, n. sp 362 



Gaurax iuterntptu.s, n. sp . 363 



