Cly Canadian Entomologist. 



VOL. XIII. . LONDON, ONT., JULY, 1881. No. 7 



ON THE EARLY S^fAGLS OF HYPENA SCABRA, Fabr. 



BY D. W. COQUILLETT, WOODSTOCK, ILL. 



Egg. — Globular, slightly flattened above, more decidedly so below ; 

 lower half smooth ; upper half deeply grooved, the interspaces rounded 

 and marked with fine transverse impressed lines ; whitish, the upper half 

 sometimes dotted with dark brown ; transverse diameter nearly ^ mm. 

 [The top of this egg closely resembles that of the unarmed Rustic 

 (Agrotis saiicia) figured in Riley's 8th Report, page 37, fig. 24.] 



Larva. ^First Stage : Body green ; a dark colored dorsal line, edged 

 each side with a whitish line ; a white subdor.sal and stigmatal line ; pili- 

 ferous spots green, each bearing a short black hair ; venter green ; head 

 polished green ; body provided with only 14 legs. When jarred from 

 their perch the larvse hang suspended by a silken thread. I observed 

 only twc) moults in these larvae, and the color and markings after each 

 moult are the same as in the first stage. Length at maturity about one 

 inch. 



Chrysalis. — Of the usual form, dark brown ; length about 14 mm. 



On the 15th of May, 1880, I enclosed a moth of this species in one 

 of my breeding cages in which some red clover was growing ; the next 

 day it deposited about 50 eggs, placing them singly on the under side of 

 the leaves, and rarely upon the stems of the clover, sometimes consigning 

 several eggs to the same leaf. They hatched out on the 23rd of the same 

 month, and all of the larvae reached maturity at about the same time, and 

 then crept beneath dead leaves, etc., and spun their cocoons. The first 

 moth issued June 28, and the last one July 2. 



On the 6th of July of the same year I obtained another laying of 

 eggs, and the larvae from these, like those from the first laying, all reached 

 maturity at about the same time. 



A larva which I found July 11, 1879, sp"n its cocoon August 22nd, 

 but died before producing the imago ; another spun its cocoon September 

 6th, disclosing the imago Sept. 18th, On the 30th of October, 1880, I 



