Platk XVIII 



Fig. 1. Stalk-maggot, CJiwtopsis cenea: a, larva, b, puparium; c, adult. 



Enlarged as indicated. (Howard, Ins. Life.) 

 Pig. 2. Frit-fly, Oscinis coxendix, puparium. Enlarged. ("Washburn, 



Rep. State Ent. Minn.) 

 Fig. 3. The same, larva. Enlarged. (Washburn, 1. e.) 

 Fig. 4. 'The same, adult. Enlarged. (Washburn, I.e.) 

 Fig. 5. Bill-bug, SpTienopJiorus ochreus, dorsal view. Enlarged 2% 



times. 

 Fig. 6. The same, side view. Enlarged 21/^ times. 

 Fig. 7. The same, larva, side view. Enlarged. 



