HOW TO KNOW THE IMMATURE INSECTS 



16b. 1st abdominal spiracles visible; dorsal spines or setae irregular. 

 Fig. 504 Fteiily LIMACODIDAE 



Pupation takes place in a smooth silken cocoon 

 which is attached to the host plant. 



Fig. 504. Euclea 

 chloris. $ . 



17a. Mesothorax less than twice as long as metathorax; maxillae 

 quadrangular, widely separated. Fig. 505. . . Family HEPIALIDAE 



/fKONT 



LABIAL pAtrus 



PKOTHOl^ACK 





vm/kbMr 



CU 



Fig. 505. Sthenopis thufe Stkr. 



a, ventral aspect; b, lateral aspect. 



The pupa is slender, fitting the 

 larval burrow. Its mandibles are 

 rudimentary, but sharply defined. 

 Before emergence, the pupa leaves 

 the larval burrow. 



17b. Mesothorax more than twice as long as metathorax; maxillae 

 longitudinal 18 



18a. 3rd abdominal segment movable on 2nd; abdominal segments 

 with an anterior row of spines and a posterior row of setae. 

 Fig. 508 Family PSYCHIDAE 



The pupation takes place in the larval bag attach- 

 ing to the host plant. The species pictured is the 

 most common one of its family in our country. The 

 family is a fairly large one. 



Fig. 506. Thyrl- 

 dopUryx ephe- 

 meroeformis Ha- 



worth. 



178 



