North American Diptkka. 



INDEX OF FAMILIES, 



ACROCERID* 39 



AoROMYzin.E, 64 



ApiocERin^:, .32 



Asilida:, . . . . • 23 



ASTEID^, 64 



BoMBYLID/E, 34 



BounoRin.K, 64 



CoNopin.E, 53 



CoRDYLURllhK 60 



DiopsiD/E, 62 



DOMCHOPODIDiK, . . . . ' .43 



Dro8ophilid.«, 63 



Empid.k, 41 



Ephydrid^:, 63 



Geomyzii)^, *. 63 



Helomyzid-k 60 



HETERONEtRIDiK, 62 



HippOBOscii)^, 65 



Leptii).*:, 22 



lonch.kid.e, .......... (51 



lonchopterid.k, ......... 40 



MlCROPEZII)^, . 60 



MlDASIIJ-K, 33 



MrsriD/E, 57 



Ne.mistrixiI).«, ......... 32 



Nycterihid.e, . . . (56 



