HOW TO KNOW THE IMMATURE INSECTS 



11a. Abdomen with rudimentary prolegs, 

 6th segments. Fig. 423 



bearing crochets on 3rd to 

 Fanuly TISCHERIIDAE 



The caterpillars moke blotch mines in the leaves of 

 oak. But Tischezia znalifoliella Clemens makes trumpet 

 leaf mines on apple. 



Fig. 423. Tiseh- 

 erio malifoliella 



Clemens. 



lib. Abdomen without prologs on 6th segment 



Family GRACHARIIDAE 



6-rti 



12a. Body with tufted or secondary hairs; at least 2 

 setae on tubercle vi of 6th abdominal segment, or 

 with additional setae on proleg. Fig. 424 41 



Fig. 424. • Setal 

 map of 6th ab- 

 dominal segment. 



12b. Body without tufted or secondary hairs; tubercle 

 ▼i with a single seta; tubercle vii with at most 3 

 setae, unless the proleg has a multiserial circle of 

 crochets. Fig. 425 13 



O/// 



\.- spiff AC 1.1 

 0°'" 



Fig. 425. Setal 

 map of 6th ab- 

 dominal segment. 



13a. Without prologs on 6th abdominal segment 



Family GRACILARIIDAE 



153 



