166 THE CANADIAN ENTOMOLOGIST. 



ing ; surface much covered with long bent black hairs. From last moult 

 to pupation nine days. 



CHRYSALIS. — Length .36 to .4 inch; shape of P. Tharos ; abdomen 

 swollen,, anterior parts narrow ; head case transversely compressed, the 

 top rounded, corners rounded, sides excavated ; mesonotum rounded, not 

 carinated, rather prominent, followed by a shallow depression ; the wing 

 cases shghtly raised at margins ; color uniform yellow-brown ; or the wing 

 cases, head and mesonotum are yellow-brown, a dark brown patch on 

 either side of mesonotum toward the front ; the abdomen mostly dark 

 brown, mottled a little with yellow-brown ; two yellow-brown sub-dorsal 

 stripes from the length of the abdomen, and two others sub-vertical \ no 

 tubercles apparent ; surface granulated. Duration of diis stage about 

 seven days. 



This pretty species flies in Colorado, abundantly in the southern part ; 

 also in New Mexico and Arizona, and more or less in Nebraska. Mr. 

 Nash obtained eggs by confining the female on Aster and also on Alfalfa. 

 They are laid in clusters, as with the other species of this genus. I 

 received from Mr. Nash, at Pueblo, So. Colorado, two clusters of eggs, 

 nth June, 18S4. They began to hatch a few hours after arrival. 

 There were about 75 eggs, in some parts three deep. On i8th came 

 another lot of larvae just hatched. I gave them leaves of various species 

 of Aster. In all respects their behavior was like that of Tharos, and they 

 are as hardy and as easy to rear. The first chrysahs formed 9th July, and 

 the butterfly came from it 15th July. On 21st August I received from 

 Mr. Nash another lot of larvae just hatched. These passed first moult 

 27th, the second 30th, the third 4th Sept.; after this they eat little and I 

 supposed would hibernate; but one passed 4th moult 27th SejDt., and the 

 rest passed same before 4th Oct. One passed the 5th moult nth Oct. 

 Up to this time the weather had been warm, but on i6th to i5th Oct. the 

 nights were cold, nearly at frost, and the larvae went into lethargy. These 

 fall larvae differ considerably in color from those of mid-summer, being 

 lighter, less brown, as I have set forth in the description. On 6th June, 

 1884, I received one larva from Mr. Nash, which must have hibernated. 

 It was .4 inch long, and past third moult. On 15th passed fourth moult, 

 and 25th passed fifth moult, but died without disclosure of imago. There 

 would seem to be two annual broods of the species at Pueblo. The 

 female of Picta was described as Canace, Tr. A. E. Soc. 3, 206, from 

 Arizona. The male described was taken in Nebraska by the late Mr. 



