956 THE BUTTERP'LIES OF NEW ENGLAND. 



definite statement of the liistory of tliis insect; they are as follows: Dr. 

 Dawson took specimens on the Cassiar trail in the high north on June 4, 

 on the Liard Uivor June 26, Couper in southern Labrador June 19 and 

 21, Corneaii found tlieui common at Godbout June 23, Couper, common 

 and in good condition at Musquaro on July 4, Fletcher one rubbed speci- 

 men at Nepigon a day or two later, Gosse took them in Newfoundland, 

 July 10, and at Cacouna Saunders took two sjjccimens, one fair and one 

 rubbed, besides half grown and mature caterpillars (presumably of this 

 species) on July 19. With the exception of the first mentioned (in which 

 there is no possibility of error) all lead to the presumption that the insect 

 winters as a full grown larva, changes to chrysalis late in May or early in 

 June, appears on the wing in the latter half of the month, flics for a full 

 month, laying eggs during the greater part of that period, giving the 

 best of the summer to the growth of the caterpillar. 



Since writing the above Mr. Fletcher tells me that the seasons at Dease 

 Lake (ten miles west of which Dawson's specimens were taken) are about 

 the same as those of Ottawa ; the same plants were in flower that June 

 and upon the same dates in the two places, while the season of both places 

 would be in advance of that of the Labrador coast or of Nepigon. Per- 

 haps this sufficiently explains the difference in the dates, and should lead 

 us to judge that the butterfly in the more favored localities normally flies 

 the first of June. 



Desiderata. This is one of our butter-flies whose home is so far in the 

 north that we may say that everything about its history and its early 

 stages is needed information. Our knowledge of the larva is at best con- 

 jectural, and the dates of its seasons are only those of a few errant cap- 

 tures. The above statement of what is probable may form a ground work 

 only for further enquiry. Haunts, character of flight and habits both 

 of butterfly and caterpillar are quite unknown ; any opportunity of ob- 

 taining the caterpillars on their natural food plants should be made use of 

 for discovering what parasites it has, whether it is attended by ants, and 

 whether it is possessed of both classes of abdominal glands. 



LIST OF ILLUSTBATIONS.-NOMIADES GOUPEBI. 



General. Pl.34,figs.30,31. Male abdominal appendages. 



PI. 24, fig. 7. Distribution in North America, 39: 19. Neuration. 



Imar/o. 46:28. Androconium. 



PI. 14, fig. 8. Male, both .surfaces. 55 : 6. Side view with head and appendages 



10. F(^male, both surfaces. enlarged, and details of leg structure. 



