HOW TO KNOW THE IMMATURE INSECTS 



8a. Antennae with long hairs; labial palps long and clavate, extended 

 in front oi head; mandibles and maxillae hid underneath the lab- 

 rum (if long, straight and needle-like). 

 Fig. 394 Family CONIOPTERYGIDAE 



This family includes about 50 known species. 

 The adults look like cphids. The structures of 

 their larvae leads us to regard them as Neurop- 

 tera. The larvae feed upon aphids, scale-insects 

 and the eggs of red-spiders. When full-grown 

 they make a double cocoon in which pupation 

 takes place. ] 



Fig. 394. Parosemi- 

 dalis flaviceps Banks. 



8b. Not as 8a 9 



9a. Empodium trumpet-shaped. Fig. 395 Family CHRYSOPIDAE 



■£MFOPlUM 



Nearly 500 species of green lacewings have 

 been described. Their larvae are known as 

 aphid-lions and feed on aphids, mites, leaf-hop- 

 pers, scale-insects and other small insects. The 

 eggs ore laid singly or in group on long slender 

 stalks. In some species the larvae are protected 

 with trash or debris. 



Fig. 395. Golden-eye 

 lacewing, Chrysopo 

 oculota Say. 



9b. Empodium not trumpet-shaped. 



10 



10a. Tarsi and tibia of hind leg fused into a single segment; mand- 

 ible with teeth 11 



144 



