149 



stripe with two gray lines; next five yellow lines alternating with four 

 others, the two outer carneous, the othei two purplish red, the upper 

 yellow line the sub-dorsal; below these a stigmatal purplish brown stripe 

 with the centre a little pale, sub-stigmatal stripe carneous with a narrow 

 yellow line above. The center of the venter is a dark brown stripe 

 having on each side two dull reddish stripes and two dull purplish brown 

 stripes, a little pale in the centre; as before the upper stripes pass over 

 the head, the yellow being a little paler on the head and on joint 2; 

 prolegs striped with the color of the body as before. 



Mature Larva. — Cylindrical; length 1.50 inches; width of head 

 .10 inch, of middle of body .12 inch. The general color much the 

 same as at the first of the period; in some the dark color is faint and the 

 light color of an orange cast, this predominating so as to give the 

 larva that color as a general color; in others both the light and the 

 dark have a gray shade, in others again the dark stripes are bright and 

 distinct and the light color orange. In all of them the lens shows the 

 stripes divisible into narrow lines. Legs twelve, with no rudiments of 

 any more. Duration of this period from seven to thirteen days. 



Chrysalis. — Length .70 inch, length of wing cases. 45 inch, these 

 reaching to the posterior part of joint 5 of the abdomen; leg and 

 antennae cases the same. Form cylindrical, tapering from abdominal 

 joint 5 back. Depth of thorax .20 inch, joint i the same; of joints 2 

 to 4 .22 inch. Anterior part rounded from the head back both dor- 

 sally and laterally. Head and thoracic parts a little roughened but not 

 punctured; the abdominal joints punctured on the anterior two-thirds; 

 the last joint striated dorsally and tipped with 8 hooked bristles borne 

 on a tubercle; the joint, aside from the cremaster, rather blunt. Color 

 rather pale brown, more or less glaucous, a little darker brown dorsally, 

 the dorsum of the anal joint, humerus and stigmata dark brown. Du- 

 ration of this period from fourteen to thirty-three days. 



As is well known this species feeds on clover. When about to 

 pupate it fastens several leaves together, lines the puparium thus 

 formed with a thin coating of silk, and then changes to a chrysalis, 

 fastening the cremaster hooks into the silky lining. 



The data given above would give this species from 41 to 66 days 

 from the egg to the imago, the majority going from 48 to 53 days, or 

 a little over a month and a half This w'ould, allowing a few days after 

 the appearance of the imago for maturity of the eggs, give us at least 

 three broods in a season, and the difference of time in the pupa state 

 would account for their being seen all through the season. How they 

 pass the winter is not determined by these observations, but as they 

 are quite variable in the spring it may be inferred they hibernate as 

 chrysalids. These observations were made in 1882, the eggs being- 

 deposited August 13th and the last moth emerging from the chrysalis 

 October I8th. 



