HOW TO KNOW THE IMMATURE INSECTS 



16a. Crochets of prologs arranged in 2 transverse bands. \ ^ 

 Fig. 430 17 \ ^^' 



16b. Crochets of prolegs arranged in 

 a circle or ellipse, sometimes 

 broadly interrupted. 

 Fig. 431 22 



Fig. 430. Cro- 

 chets in two 

 bands. 



Fig. 431. Crochets: a, in com- 

 plete circle; b, in incomplete 

 circle. 



17a. Prolegs with a single series of crochets, or with 

 2 bands formed of several series of alternate 

 crochets. 

 Fig. 432 Family INCURVARIIDAE 



Fig. 432. Cro- 

 chets in a single 

 series. 



17b. Prolegs with 2 simple series of crochets. 

 Fig. 433 18 



Fig. 433. Crochets 

 in two series. 



18a. Abdominal setae iv and v remote. Fig. 434. (Compare with Fig. 

 435) (BucculatTix) Family LYONETIIDAE 



The caterpillars frequent forest- 

 ed areas and orchards. They are 

 mostly leaf miners. Those of Buc- 

 culatiix are first miners and later 

 skeletonizers. Pupation takes place 

 in a cocoon. The cocoon of Buc- 

 culatrix is ribbed and surrounded 

 by a palisade of erect silken fila- 

 ments. 



Fig. 434, Lyonetio speculello Clemens. 



155 



