THE CANADIAN ENTOMOLOGIST. 60 



but scant. Still these are butterflies which do not fly before June, while 

 the species of Cyaniris appear early in the spring and thus have a much 

 better chance to develop a second brood. Should my hypothesis of the 

 Californian Cyaniris be brought against me, as presuming a double instead 

 of a triple brood, as in Eastern America, I would reply that there is a 

 much greater difference between monogeneutism and digenutism than 

 between the latter and trigoneutism. It is a much more common thing 

 for a digoneutic insect to become trigoneutic in a southern station, than 

 for a monogenutic to become digoneutic under those influences. There- 

 fore, knowing that the form neglecta appears twice a year, it should be 

 regarded, a priori, as probable that Lucia is succeeded by another brood 

 (not necessarily resembling it) the same season. 



As to the European C. Argiolus, it is double brooded, but I do not 

 find reference to any difference between the broods. 



In this paper, for readier comparison with what has been previously 

 written, I have used the terms Pseudargiolus, etc., as Edwards employs 

 them. It is plain to me, however, that the Pseudargiolus of Boisduval 

 and LeConte is the form described by Edwards under the name of 

 violacea, and I have so placed it in my revision of the species of this 

 group, recently presented to the Buffalo Society of Natural Sciences. 



Appendix ; On the Seasons of the Species of Cyaniris in New England. 



C. neglecta. — Like the preceding species [i. e., C. Pseudargiolus'] 

 this insect is double brooded, hybernating in the chrysalis state. The 

 earliest males appear at or shortly before the middle of May, but do not 

 become abundant before the last week in the month ; the first females 

 appear about ten days later than the males, but are still rare at the 

 beginning of June, although they disappear toward the end of the month 

 or early in July. The eggs are probably laid in the middle and latter 

 part of June and most of the caterpillars become full grown in the early 

 part of July ; how long a time is passed in the chrysalis is unknown, but 

 the earliest butterflies of the second brood appear about the first of July 

 and continue to emerge from the chrysalis until the first of August ; they 

 become abundant by the middle of July, although the males are often 

 still greatly in excess in the latter half of the month, and in spite of their 

 great delicacy these insects may still be seen in September. This brood 



