29-i THE CANADIAN NATURALIST. 



Puss-moths (Cerura), of all ages, on the willows ; some re- 

 cently hatched, with the double tail sticking out in the air 

 unreasonably long; some larger, the tail much shortened, 

 handsomely coloured with bright green and brown ; others of 

 the same size, differing in having the back white ; they 

 spin close cocoons^ abrading particles of the wood from the 

 box in which they are kept, and mixing them with the silk. 



F. — One of these produces the Griseous Moth (Cerura 

 Hastulifera), 



C. — A little warty caterpillar, of a bright pellucid green, 

 feeds now on the apple tree, which spins a cocoon in an angle, 



and produces the Apple Moth (Tethea ?). I took, 



from a rose-bush, a handsome and singular caterpillar, black, 

 with large oval spots of bright yellow down the back : from 

 every segment proceeds a hair on each side, which is dilated 

 at the end into a stout knob. Do you know it ? 



F. — I have taken it likewise from the hop, but never 

 succeeded in rearing it. I once took from an ash, a small 

 caterpillar, black and white, with two or three knobbed 

 hairs, projecting over the head ; this afterwards moulted, 

 when the whole back became brown, and the clubbed hairs 

 proceeded from each segment, as in this species ; I suspect 

 it might have been the present, in an earlier moult. 



C. — In beating willows, a very beautiful and large cater- 

 pillar, of a bright green, with circles of short bristles, pro- 

 ceeding from orange-coloured tubercles, resembling that of 

 the fine Emperor Moth of England, fell into my umbrella, 

 but was unfortunately killed by the fall. It was no doubt 

 that of Saturnia Luna. I found suspended from a stalk of 

 Golden Rod ( Solidago), one of the large spinous caterpillars 

 of the Camberwell Beauty ( Vanessa Antiopa) ; it was just 

 ready to become a chrysalis, which it accordingly did soon 

 after, on the floor of its cell ; for I had disengaged it from its 

 button of silk, from a curious desire of seeing whether it would 



