OF THE FARM AND GARDEN. 225 



came to their growth ahout the last of July, at whiph 

 time they were both without a vestige of green. The 

 ground-color was dirty yellowish, especially at the sides. 

 Each segment was marked transversely with six or seven 

 slightly impressed fine black lines, and longitudinally 

 with wider non-impressed dark-brown patches, alternat- 

 ing with each other, and giving the worm a checkered 

 appearance. These patches become more dense along 

 the subdorsal region, where they form two irregular dark 

 lines, which on the thoracic segments become single, 

 with a similar line between them. There was also a 

 dark stigmatal line with a lighter shade above it, and a 

 dark stripe running obliquely downwards from the pos- 

 terior to the anterior portion of each segment. The 

 belly was yellow with a tinge of pink between the pro- 

 legs, and the shiny tubercle at the tail was black, with a 

 yellowish ring around the base. The head, which is 

 characteristically marked, and by which this worm can 

 always be distinguished from its allies — no matter what 

 the ground-color of the body may be — is slightly rough- 

 ened and dark, with a lighter broad band each side, and 

 a central mark down the middle which often takes the 

 form of an X- This worm does not assume the common 

 Sphinx attitude of holding up the head, but rests 

 stretched at full length, though if disturbed it will throw 

 its head from side to side, thereby producing a crepitating 

 noise. 



The chrysalis is formed in a superficial cell on the 

 ground; its surface is black and roughened by confluent 

 punctures, but between the joints ib is smooth and in- 

 clines to brown; the head-case is broad and rounded, and 

 the tongue-case is level with the breast; the tail termi- 

 nates in a rough flattened wedge-shaped point, which 

 gives out extremely small thorns from the end. 



The Moth (figure 141,) appears in the following 

 March or April, there being but one brood each year. It 



