AETHROPODA 



appearance though it is entirely harmless. It enters the 

 ground to pupate without spinning a cocoon. The cater- 



PlG. 68. Photograph of the tomato- worm moth with its tongue uncoiled. 

 One half natural size. 



pillar defoliating the Catalpa trees in September, the large 

 green tomato worm, and the tobacco worm often injuring 

 the tobacco crop, 

 are larva? of sphinx 

 moths. 



Spinners (Bom- 

 bycidae). This 

 group is so named 

 because the larva? 

 spin cocoons in 

 which to pupate. 

 They are distin- 



, FIG. 69. Photograph of tomato worm, the larva of 



the the moth shown in Fig. 68. Two thirds natural size. 



