COLIAS II. 



Chrysalis. — Length .75 inch; greatest breadth .18 inch, depth .2 inch ; com- 

 pressed laterally, the thorax prominent ; the head case pointed, beak-like, rounded 

 on the ventral side, less so on dorsal ; mesonotum rounded, rising to a low carina ; 

 color yellow-green, the abdomen more yellow, and granulated with paler, and 

 along its side a bright yellow band, through which runs a red or an orange stripe ; 

 on ventral side, also, a row of small ferruginous spots ; head case on ventral side 

 at extremity and for a little way down the lateral ridges bright yellow ; on middle 

 of wing case a blackish dot, and a series of sub-marginal ones, one on each inter- 

 space. One example, instead of the ventral spots, had a reddish band across 

 three segments. (Fig. r/.) Duration of this stage nine to eleven days; of the 

 larval stages about eighteen days ; from laying of egg to the imago about thirty- 

 one days. 



G. Harfordii was described by Mr. Henry Edwards, 1877, from seven males, 

 no female being mentioned ; and in same paper C. Barbara was described from 

 two females, the male said to be unknown. A year later, Mr. Edwards says that 

 he is inclined to think Barbara is the female of Harfordii In 1882 and 1883, 

 Mr. W. G. Wright, at San Bernardino, several times took Harfordii males in 

 copulation with Barbara females, as well as with females of their own type, and 

 became satisfied that the two represented but one species. 



In Jul}', 1883, Mr. Wright obtained eggs by confining the females over Astrag- 

 alus crotalaria. As these females were afterwards sent me, I was able to iden- 

 tify them all as Barbara. The first lot of eggs, ten in number, were six days in 

 the mail, and, the heat not having been extreme, all but two had hatched on ar- 

 rival, 13th. Next day came thirty-one young larvas. I fed these on white 

 clover, red clover being refused, but many died at every stage to pupation, either 

 from change of food or climate, so that I got but two butterflies, a female on 6th 

 August, a male on 8th. The female is the one figured Nos. 3, 4, Harfordii type. 

 The male was of same type. From the result of this breeding, and Mr. Wright's 

 observations in the field, it seems to me possible that the species may be sea- 

 sonally dimorphic, Barbara representing the earliest brood of the butterflies 

 from hibernating larvfe, Harfordii the later, or midsummer, but not so defi- 

 nitely as is the case with many species of butterflies. I have in vain endeav- 

 ored to learn more about this matter by breeding, the distance and the heat 

 in July making it almost impossible to transmit any eggs which will hatch on 

 middle of the journey. The larvae are pretty sure to die. Lots of eggs sent in 

 '84, '85, failed to give me one larva. Mr. Wright got twenty larvae of all sizes 

 on the food plant, as late as 24th December, 1883, but of course it would have 

 been of no use to transmit larvae in winter, as I could not feed them. 



