17 



These scales are often found 

 on the fruit (Fig. 5), and when 

 present in large numbers they 

 prevent the full development of 

 the fruit, causing it to crack or 

 fall from the tree, or render it 

 unsalable. 



The mature male is very small, 

 and supplied with two well-devel-s;. ^ 

 oped wings. It is shown greatly 

 enlarged in Fig. 7, the natural 

 size being indicated by the crossed 

 lines in the small circle below the 

 right wing. 



Early in June, in this State, the 

 young crawl out from beneath the fig. 6.— San Josfe sonics of natural size 



scale and spread over the trees, on an apple branch; scales somewhat 



enlarged on apple bark to the left atoove. 

 They appear like movingpoints of _rrom Department of Agriculture. 



yellowish color, and it is very difficult to distinguish them with the 



Fig. ".—Male Insect of the San Jose scale, greatly enlarged.— From Department 

 of Agriculture. 



unaided eye. Fig. 8 represents the insect at this stage of its exist- 

 ence very much enlarged, with its three pairs of legs and one pair of 

 antennae (one of which is still more enlarged at 6), while its long, 

 hair-like beak or proboscis, used for feeding, is shown curled up 

 between its legs. 



