20 



NATURAL HISTORY OF INSECTS. 



A line midway between the dorsal and stigmata lines is 

 termed the sub-dorsal line. The under part of the body is 

 called the renter. 



Some larvae are perfectly smooth-skinned, as the caterpillar 

 (Fig. 49) of the Turnus Butterfly; others are more or less 



covered with tubercles, Fi g- 49 - 



such as the caterpillar 

 (Fig. 50) of the Cecro- 

 pia Moth ; some are 

 covered with warts. 



Fig. 50. 



Fig. 51. 



Fig. 59. 



from which grow clusters of hair, as the caterpillar (Fig. 51) 

 of the Tussock Moth; still others are covered with small 



