INSECTS INJURIOUS TO CORN 



163 



crop will largely prevent so serious injury to a subsequent corn 

 crop. The burning over of grass- and swamplands infested with 

 the beetles will also be of considerable value. 



The Maize Bill-bug * 



Throughout the Southern States and northward to Kansas 

 there has been more or less serious injury by a bill-bug which has 



FIG. 137. Sections of sugar-cane showing work of Sphenophorus obscurus: 

 a, larva; 6, pupa; c, probable points of oviposition. (After Riley and 

 Howard, "Insect Life.") 



been recognized for many years as Sphenophorus robustus Horn. 

 Recently Dr. F. H. Chittenden has recognized this insect as a new 



* Sphenophorus maidis Chittn., see E. O. G. Kelly, Bulletin 95, Part II, 

 Bureau of Entomology, U. S. Dept. Agr See also W. P. Hayes, Tech. 

 Bulletin 6, Kansas Expt. Station, and Farmers' Bulletin 1003, U. S. Dept. 

 Agr. 



