Bulletin 



OF THE 



Illinois State Laboratory 



OF 



Natural History 



Urbana, Illinois, U. S. A. 



STEPHEN A. FORBES, Ph.D., L.L.D., 

 Director 



Vol. X. May, 1915 Article VI. 



THE CHIRONOMID^, OR MIDGES, OF ILLINOIS, WITH 



PARTICULAR REFERENCE TO THE SPECIES 



OCCURRING IN THE ILLINOIS RIVER 



BY 



John R. Malloch 



