Bui. 437, U. S. Dept. of Agriculture. 



Plate V. 



Flat-Headed Borers. 



Yjg. l.—Chrysophana placida: Larva. A, Dorsal view; B, dextral view; C, ventral view. X4i. 



Fig. 2—AcinaeodiTa prorsa: Larva. A, Dorsal view; B, dextral view; C, ventral view. X4. 



Fig. S.—Ptvsima gibbicottis: Larva. A, Dorsal view; B, dextral view; C, ventral view. X5. 



Fig. 4.— Ty?ularis ulneyae: Larva. A, Dorsal view; B, dextral view; C, ventral view. X&h- 

 (Drawings by Eleanor T. Armstrong.) (Original.) 



