LIST OF LF.I'IDOPTERA. 109 



with the windows constantly open, so that confinement was, if anything, 

 calculated to retard rather than accelerate maturity. I have moreover beaten 

 the larva full-fed in July, but being stung I did not rear it. What is still 

 more conclusive, I am again firmly supported in my opinion by M. Duponchel 

 and Guenee, who remark of this larva, "The individuals found in July produce 

 the perfect insect iu August. Those found in October pass the winter in the 

 pupa state." — "Les individus qu'on trouve en Juillet deviennent insectes parfaits 

 en Aout. Ceux qu'on trouve en Octobre passent l'hiver en chrysalide, et ne 

 donnent leurs papillons qu'en Mai Ou Juin de l'annee suivante. (C.) 



59. — JV. cucullina. — I have been assured that this insect has been taken in 

 Suffolk, but I did not meet with it. 



N.B. — I have much pleasure in adding this insect to the list of Suffolk 

 lepidoptera. I beat two larva? last August a few miles from this place, and Mr. 

 W. Baker has, during the last few years, taken six or seven of the perfect 

 insect in the same locality. It appears, however, to be very rare. I had also, 

 I believe, the pleasure in the summer of 1853, of re-discovering this insect in 

 Bucks , after its non-occurrence in England for several years. I was casually 

 examining some maple twigs in July, when I found eggs which from their 

 appearance I felt convinced were not those of N. camelina, the only other 

 British Notodont which feeds on maple. I took about ten of them home 

 into Derbyshire, and reared five larva?, which when full-fed proved to be 

 indubitable Cucullina. My friend Mr. Greene, who was at that time residing 

 in Bucks., ran me very hard in my discovery, for upon writing to inform 

 him of my grand haul, he replied that a few days previous to the arrival of 

 my letter, he had himself beaten the larva. I had beaten two small larva? 

 the previous year, but not knowing what they were, or what I had beaten 

 them from, I killed them by giving them beech leaves. It appears to feed 

 exclusively on maple, and what is still more remarkable, it prefers the most 

 shady spots, and may generally be found in the greatest plenty where the 

 sun can seldom penetrate. I only once beat two larva? from a sunny hedge, 

 and they were both of them beautifully suffused with red, like the rose-coloured 

 variety of N. camelina. It is very uncertain in its appearance; one season 

 the larva? are tolerably plentiful, whilst the next scarcely one is to be seen. 

 It may always be distinguished from its congeners, by the glass-green dorsal 

 stripe which extends from the head nearly midway along the back. It is a 

 very easy insect to rear. It spins a cocoon similar to that of N. camelina 

 and dromedarius, among moss or roots of grass, etc., just at the surface of the 

 soil. It has never, I believe, been found in the pupa state in England. The 

 egg, which is laid in July, and placed on the under side of the leaf, is of a 

 very delicate semi-transparent white, and easily distinguished from those of 

 N". camelina and dromedarius. The perfect insect appears in June, and the 

 larva? may be found from August to October, of various sizes. It is only 

 single-brooded. I have reared the larva? from eggs laid in confinement in 

 May. They spun up the end of June and the beginning of July, but not 

 a single moth appeared till the following May. If my readers wish for further 

 information, I must refer them to my papers on the double-broodedness of 

 some of the Notodontce, at pages 4592, 5148, and 5292, of the "Zoologist" 

 VOL. VIII. Q 



