Bui. 491 , U. S. Dept. of Agriculture. 



Plate XVII. 



Work of Larv/e of Melon Fly in Green Bean Pods. 



Bean pods affected by larvae of the melon fly. In figures 1 and 2 a portion of the pod has been removed 

 to expose the larvae within and their work. Figures 3 and 4 represent pods in different stages of 

 drying out after well-grown larvae have left them. ( Original.) 



