VI TABLE OF CONTENTS. 



Page 



MYOPIDiE, 342 



MUSCID^, 342 



Dejeania vexatrix n. sp. Colorado 343 



Pyrgota debilis n. sp. Kentucky 343 



Trypeta persuasa n. sp. Colorado 344 



" fausta n>ep. White Mts., N. H 346 



" penelope n. sp. New York. 346 



" diana n. sp. Missouri , . . 347 



" basiolum n. sp. Massachusetts 348 



General Remarks on the Diptera of the Western Region. . . . 349 



