

FOREST INSECTS AND FUNGI 



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winged and some wingless. The young of the latter are oval 

 in shape, somewhat flattened, and of a yellowish-brown tint. 

 As these develop they become darker colored, and finally almost 

 black. The wool-like covering serves to hide the insect and 



By permission of the Connecticut State Forester. 



Fig. 44. A white pine tree 27 years old seriously attacked by the white-pine aphid. 



gives it the appearance of a ball of down. The winged species 

 are of a light-reddish tinge; their white wings expanding rapidly 

 become transparent, but the bodies become almost black. 



Life History. The eggs laid by the wingless females begin to 

 hatch early in May, and the young emerging in large numbers 

 from the bulbs of woolly matter, spread over the bark at the base 



