Fig. 1. Three stages of the Squash Bug 

 (Anasa tristis), (a) adult, (h) nj'mph, (c) egg, 

 x2. Drawn by E. L. Westlake, from a photo- 

 graph by the author. (Reduced.) 



Fig. 2. The four stages of the Striped Cu- 

 cumber Beetle (Diahrotica vittata). magnified 

 five diameters; a. Eggs; ?j. Larva; c. Pupa; 

 d. Imago. { 



Fig. 3. Illustration of Insects witli Sucking 

 Mouth-parts. Beak ^partially extended. (Reduced.) 



