28 



8TEUCTURE OF THE LEPIDOPTEEA 



Look at the peculiar caterpillar of the Lobster Moth (fig. 23) 

 a creature that differs from most other caterpillars not only in its 

 claspers, but in many other respects too. Observe its long and 

 slender legs, its humped middle segments, and its upturned hinder- 

 most segment, of enormous size and mounted with a pair of 



FIG. 21 LARVA OF THE YELLOW UNDER- 



^VI^CT MOTH (Pronuba). 



FIG. 20. WALKING LEG 

 OF A CATERPILLAR. 



FIG. 22. LARVA OF THE 

 CRIMSON SPECKLED 

 MOTH (Pulchella). 



FIG. 23. LARVA OF THE LOBSTER MOTH 

 (Fagi). 



clubbed 'horns.' This last segment, you will observe, has no 

 claspers. 



Another allied caterpillar is that of the Iron Prominent Moth 

 (fig. 24). This one also has humped segments, and the claspers of 

 the thirteenth segment are imperfectly developed. 



A large number of other exceptions to the general rule are to be 

 found in the caterpillars of the Geometer Moths (page 268), one of 

 which is here represented. These have generally only two pairs of 



