Agromyza canadensis Malloch, female head 1 anterior 2 lateral 3 Phytobia setosa (Loew), wing, with detail of junction of R1 and costa 4 Melanagromyza virens (Loew), wing, with detail of junction of R1 and costa 5 political map of the United States and Canada 6 detail of the Delmarva states – Delaware, Maryland, Virginia and West Virginia, and the District of Columbia. Abbreviations: c, costal vein; fr orb, fronto-orbital setae; iv s- inner vertical seta; oc, ocellar seta; ori a, anterior inferior orbital seta; ori p, posterior inferior orbital seta; ors a, anterior superior orbital seta; ors p, posterior superior orbital seta; ov s, outer vertical seta; po, postocellar seta; sc, subcostal vein; vb, vibrissa.