16 THE CANADIAN ENTOMOLOGIST. 



Pupated April 27th, without spinning a cocoon. Pupa light reddish 

 brown without markings, i 1 /^ inches long and very slender. Imago — 

 May 1 8th ; $. 



The situation in which the larva was found, the small head and general 

 appearance indicate a subterraneous habit, and, indeed, aside from its 

 extreme slenderness, the resemblance to some species of Agrotis is 

 striking. 



Larvae of Hemileuca maia, May 30th, in considerable numbers on 

 Willow. These larvae are gregarious while young, but after the 3rd moult 

 scatter, and deserting the willows, appear to eat anything that falls in their 

 way. I have seen during the summer (July and August) individuals 

 several miles from the marshes and upon almost every plant I can name. 

 Imagoes abundant in October in the morning, but on every occasion, 

 though hundreds might be taken before 12 o'clock, not one could be 

 found after 1 o'clock. 



Pupae of Smerinthus excaecaius beneath willows. Imagoes in June. 

 Much larger and more highly colored than in eastern examples. 



6". modesta from larva found on Cottonwood. 



August 6th — Erebus odora % in the water closet of a business block 

 in the heart of the city. The apparent fondness of many rare species 

 of Lepidoptera for a fetid odor leads me to suggest the experiment of 

 sugaring a few trees apart from the others with ale and molasses, in which 

 some assafcetida has been dissolved. 



August and September — Larvae of Ennomus alniaria abundant on 

 maple. This larva evidently changes its color somewhat with different 

 food, as these closely resemble the bark of this tree. Imagoes in Sept. 



Larva of Apatcla americana abundant in same locality, but later in the 

 month to be found clinging to the twigs, completely honey-combed by 

 some species of Chalets (?). 



Larvae of Sphinx chersis, S. gordius and D. undulosa in company on 

 black ash. 



September 2oth-October 3rd. — Eight examples of Macrosila 5-macu- 

 lata from larvae which pupated in July. My experience with P. achemon 

 would apply to this species also, as I had nearly full-grown larvae this year 

 before my over-wintering pupae had fairly begun to emerge. I am 

 informed that perfect imagoes are usually taken here in July and late in 

 September, but have never seen one in the spring. 



