Platk XL VI 

 Prairie Species 



Pig. 1. Cabbage-worm Butterfly, Pontia rapce, female. (Riley, Rep. 

 State Ent. Mo.) 



Fig. 2. Metallic Milkweed Fly, PsUopus sipho, male. Enlarged. (Wash- 

 burn, Rep. State Ent. Minn.) 



Fig. 3. Milkweed Butterfly larva, Anosia plexippus. (Riley, Rep. State 

 Ent. Mo.) 



Fig. 4. Caterpillar Gall, Gnorimoschema gallcesolidaginis. (Cook, Rep. 

 Ind. Dept. Geol. and Nat. Res.) 



Fig. 5. Goldenrod Bunch Gall, formed by the midge Cecidomyia soli- 

 daginis. (Beutenmiiller, Amer. Mus. Journ.) 



Pig. 6. Vertebrated Robber-fly, Promachus vertebratus, male. (Wash- 

 burn, Rep. State Ent. Minn.) 



