HOW TO KNOW THE IMMATURE INSECTS 



6a. Spiracles of 1st abdominal segment covered by wings. 



Fig. 496 Family INCURVARIIDAE 



Pupation takes place in a silken cocoon at the 

 tnouth of the larval burrow. 



Fig. 496. Pro- 

 doxus quinque- 

 punctellus Cham. 



6b. Spiracles of 1st abdominal segment exposed. 



Fig. 497 Family NEPTICULIDAE 



When the larva is full-grown it 

 drops to the ground and spins a dense, 

 flattened silken cocoon witnin the rub- 

 bish or on the surface of the soil. 



Fig. 497. Nepticula piqtonello 



Clemens ^ .: a, dorsal aspect; 

 b, ventral aspect. 



7a. Middle abdominal segments, each with 2 rows of spines 8 



7b. Middle abdominal segments, each with 1 row of spines 10 



8a. Cremaster absent, or indicated only by a tuft of spines; anal rise 

 without spines. Fig. 498 Family AEGERIIDAE 



Pupation takes place in the tunnel which is made 

 by the larva. 



This is a comparatively small family. The species 

 pictured Hves on Hiac and ash. 



Fig. 498. Podo- 

 scsio syrlngoe * 

 (Harr.) $ . ^^ 



175 



