LACE-WINGS. 35 



There are often some curiously-formed cells at the base of the Table- 

 wing. case 36> 



Their delicate gauzy wings have won for them the name of 

 " Lace-wings," whilst from their bright golden or coppery eyes they 

 are often called " Golden-eyes." When handled they have a strong 

 disagreeable smell. 



The eggs, which are laid in groups, are often found attached to 

 leaves and other objects. They are white and are attached by long 

 delicate threads. 



The larvae feed on Aphidce, which they hold up in the air in their 

 long jaws until all moisture is sucked out. When walking they use 



Fig. 34. 



a, Pupa; b, cocoon ; and c, imago of Lacewing (Chrysopa perla), twice 

 natural size. (1370.) 



the tip of the abdomen as a lever and a sucker, so that if they lose 

 their hold of a leaf they can hang by the tip of the abdomen until 

 they regain their footing. When full grown they spin a round 

 silken cocoon in which they turn to the pupa. 



The Goniopterygidce, (1372) are very small insects,' having the body 

 covered with a white powdery substance. The wings have a very 

 simple neuration, with very few cross nervures. The hind pair are 

 smaller than the front ones. 



These insects are common on fir trees. They resemble the 

 Ghrysopidce, in their habits and metamorphoses. Their larvae have 

 been found feeding on minute scale-insects. 



d 2 



