T2 



SECOND ANNUAL REPORT OF 



{Fit. 45-] 



in irregular transverse rows. An oblique cream-colored lateral band, 

 bordered below with a darker green, and most distinct on the middle 

 segments, connects with a cream-colored subdorsal line, which is bor- 

 dered above with darker green, and which extends from the head to 

 the horn at the tail. There are five and often six somewhat pate yel- 

 low triangular patches along the back, each containing a lozenge- 

 shaped lilac-colored spot. The head is small, with yellow granula- 

 tions, and four perpendicular yellow lines, and the spiracles or breath- 

 ing holes are orange-brown. When about to transform, the color of 

 this worm usually changes to a pinkish-brown, the darker parts being 

 of a beautiful mixture of crimson and brown. Previous to this 

 change of color Mr. J. A. Lintner, of Schoharie, New York, has ob- 

 served the worm to pass its mouth over the entire surface ot its body, 

 even to the tip of its horn, covering it with a coating of apparently 

 glutinous matter — tJie operation lasting about two hours.* Before 

 transforming into the pupa or vsalis 

 state, it descends from the vine, and with- 

 in some fallen leaf or under any other 

 rubbish that may be lying on the ground, 

 'forms a mesh of strong brown silk, within 

 which it soon changes to a chrysalis (Fig. 

 45.) of a pale, warm yellow, speckled and 

 spotted with brown, but characterized chiefly by the conspicuous 

 dark brown spiracles and broad brown incisures of the three larger 

 abdominal segments. 



The moth (Fig. 46) which 

 in time bursts from this 

 chrysalis, has the body and 

 front wings of a fleshy-gray, 

 marked and shaded with 

 olive-green as in the figure, 

 while the hind wings are of 

 a deep rust color, with a 

 small shade of gray near 

 their inner angle. 

 This insect is, in northerly regions, one-brooded, but tow •*([* the 

 south two-brooded, the first worms appearing, in the latitude of St. 

 Louis, during June and July, and giving out the moths about two 

 weeks after they b3Come chrysalids, or from the middle of July !<> the 

 first of August. The worms of the second brood are full grown in 

 September, and passing the winter in the chrysalis state, give out the 

 moths the following May. On one occasion I found at South Pass, 

 Illinois, a worm but one-half grown and still feeding as late as Octo- 

 ber 20th, a circumslance which would lead to the belief that at 



! 



*Proc. Ent. Soc. Phil., Ill, p- 663. 



