Plate L 

 Prairie Species 



Fig. 1. Rusty Digger-wasp, CMorion ichneumonewm. (J. B. Smith, Ins. 



of N. J.) 

 Fig. 2. Water-st rider, Gerris r<))ii</is. (Lugger, Rep. Ent. Minn. Exp. 

 Sta.) 



