^ctaiional papers; 



OF THE 



poston ^ocietp of J^atural ?|is;torp. 



VII. 



FAUNA OF NEW ENGLAND. 



15. 



LIST OF THE DIPTERA OR TWO-WINGED FLIES. 



By CHARLES W. JOHNSON. 



BOSTON: 



PRINTED FOR THE SOCIETY FROM THE 



GURDON SALTONSTALL FUND. 



FEBRUARY, 1925 



