Plate L 

 Prairie Species 



Fig. 1. Rusty Digger-wasp, Clilorion icJiyieiwiorieum. (J. B. Smith, Ins. 



of N. J.) 

 Fig. 2. Water-strider, Gerris remigis. (Lugger, Eep. Ent. Minn, Exp. 



Sta.) 



