142 IOWA ACADEMY OF SCIENCE Voi.. XXVI, 1919 



Arphia zanthoptera 3 



Tettix sp 1 



Crickets, all species 142 



Xiphidium spp 62 



Orchelimum, sp 11 



Tree crickets, CEcanthus spp 8 



Total 1000 



Many farmers of the state testify to the value of the poison brar. 

 and hopper-dozer in protecting crops from grass-hopper damages. 

 Likewise, the feed value of the hoppers thus caught in crop protec- 

 tion has been demonstrated beyond doubt. The catching alone of- 

 fers big returns, but when the hoppers may be turned into direct 

 value as a substitute for tankage, the control work becomes of even 

 greater worth. 



Department of Biology, 

 Iowa Wesleyan College. 



