THE CANADIAN ENTOMOLOGIST. 133 



wings. The tip of abdomen coarsely furrowed and punctured, terminating 

 in two long hooks with several shorter ones arising from the corrugated 

 surface a little way from these. These hooks are fastened in a button or 

 piece of silk of considerable extent at the posterior end of the cocoon ; 

 the latter being composed of leaves fastened together, with or without 

 being attached to the box, but not lined on the inside except the space 

 of silk already mentioned. Anterior portion of chrysalis a little produced 

 at the head, no particular organ projecting prominently. Color brown, not 

 very dark, moderately glaucus. Duration of this period i8 days. 



This gives a total time from depositing the egg to the imago of 52 

 days. I should say, however, that this season was very wet during the 

 months of May and June, and after passing the 5th moult there were 

 several days during which little food was taken and some of the larvae 

 died, they appearing to be affected by the wet weather. I should say 

 further that the notes as to time of moult were taken from a few of the 

 more healthy larvae, several of them being more protracted in their time 

 than the one given. The 13 brought through all their stages had periods 

 as follows : 



I a period of 52 days, 2 a period of 55 days. 



The eggs were deposited April 30th, and the first moth hatched June 

 2 1 St, the last July loth. During former years I have found the larvae of 

 this species on willow and other bushes, and had them spin up the last of 

 September and come out as moths the fore part of November. In other 

 instances they passed the winter as chrysalids. From all the data given 

 I should judge that there are from two to three broods during a season, 

 according as the eggs are deposited by the early or late moths. All that 

 I have wintered over hibernated in the pupa state, which is probably the 

 usual if not the only method of hibernation. 



On page 89 of vol. 9 of the Canadian Entomologist (1877) Mr. A. 

 R. Grote mentions Mr. Hill, of Albany, N. Y., as authority for a statement 

 that Ediisa and Lunata are possibly sexes of one species. On page 174 

 of the same volume, Mr. Thomas E. Bean, of Galena, 111., gives the result 

 of some observations on specimens in his collection going to show that 

 not only the two referred to, but Saundersii, should be included as well in 



