TULSA Rea OSs 
Page 
Fie. 7. The lesser grain-borer (Rhizopertha dominica): Adult.......--------- 30 
8. Section of horse collar showing holes bored by the lesser grain-borer. 34 
9. The larger grain-borer (Dinoderus truncatus): Adult, larva, pupa, 
detalls:c ac cssnins soe sss 2a Sob ee Ot Re nee eee eee 50 
10. The larger grain-borer: Kernel of corn showing characteristic work 
of adult:orbeetlé:s 2s = 22-3 a eas eee eee eee 51 
IV 
