138 THK CANADIAN ENTOMOLOGIST. 



found a fresh female of this species in a shock of corn ; the moth was 

 killed the same day and her ova were found to be undeveloped, from 

 which fact, and the situation in which the moth was found, it is very pro- 

 bable that the imago hybernates. The moth from which I obtained the 

 first laying of eggs was very much faded and worn, and presented all the 

 appearance of having hybernated. Prof C. V. Riley also holds the 

 opinion that the imago hybernates, and adds"' that in more southern 

 localities the chrysalids also hybernate, as he has taken them under bark 

 m the winter. He states that the larvse also feed upon robinia^ but I have 

 never taken them upon any other plant than clover (Trifolium pfatense). 

 There appears to be only two broods produced in one season in this 

 latitude ; I have never taken the larvae later in the season than the first 

 week in September, and female moths enclosed in my breeding cages at 

 this time refused to deposit their eggs, although earlier in the season they 

 deposited eggs readily in confinement. 



Scabra is very abundant in this locality, frequenting clover meadows in 

 company with Plusia precationis and Drasteria erechtea. When flushed it 

 flies very rapidly a short distance and then suddenly alights upon a leaf 

 and quickly crawls to the under side, concealing itself as much as pos- 

 sible from sight. 



Below is given the time passed by this species in its diff'erent stages : — 

 From deposition of egg to hatching, - - 4 to 6 days. 

 " hatching to first moult, - - 17 " 



" first to second moult, - - - 3 " 



" second moult to spinning cocoon, - 5 " 



" spinning cocoon to imago, - - 12 to 14 " 



ENTOMOLOGY FOR BEGINNERS. 



THE RED-HUMPED APPLE TREE CATERPILLAR. 



( JSiotodoita concinna) 



BY THE EDITOR. 



This msect appears in the j^erfect or motli state (fig. 9) during the 

 latter part of June. When its wings are expanded it measures from one 

 inch to one inch and a quarter across. The fore wings are dark bruwn 



* Bulletin No 3, U. S. Enl. Commission, p. 27. 



