tlie neck, and one at the tail. 2, A. V-nigra Fab., the hivva has 

 tufts down the back, but has no horn-like fascicles. 3. A. Salicis 

 Linn., has a larva less hairy without tufts. 4. A chrysorrhcea 

 Linn. ; and 5. A. jilKEliorrlioea Haw., have larvae much more 

 hairy than the last, with whiskers to the head. It must be 

 observed, that in A. ccenosa the rays of the antennae are ter- 

 minated by 3 or 4 spreading bristles ; the tongue is shorter ; 

 the two first joints of the palpi are much more thickly covered 

 with hair, and the terminal one is much more distinct; the 

 basal and terminal joints when deprived of their scales are 

 much smaller, and the middle one much longer, than in the 

 type A. Salicis, from which all the dissections in the plate are 

 made. 



We are indebted to J. C. Dale, Esq., for this addition to 

 our Fauna; for having found a caterpillar of Arciia ccenosa at 

 Whittlesea Meer, he directed the Messrs. Standish to the 

 spot, who took several of the larvae (one of which is figured), 

 as well as beautiful specimens of the imago. 



The caterpillars, which are found and feed upon the Burr- 

 reed, and also, I am informed, upon Butomus umhellatus, are 

 full-o-rown the end of July and beginning of August, when 

 they attach themselves to a leaf, where they form a regular, 

 nearly oval cocoon, semitransparent, and composed externally 

 of their own hairs. It is a curious fact, that the moths appear 

 before many of the larvae have begun their cocoons, which is 

 the case also with Hijpogymna dispar. In Hubner's work the 

 male alone is figured, and no representation of the caterpillar 

 has ever before been given. 



Arctia chysorrhcvaawd pliccliorrhcea appear periodically, and 

 at times to an alarminjx degree. A. Salicis is not uncommon 

 upon sallows, but V-nigra is in very few cabinets ; the cater- 

 pillar feeds upon the lime, and the moth has been found upon 

 that tree the middle of August, in the neighbourhood of 

 Darent, Kent. 



A leaf of the plant upon which the caterpillar fed, whilst in 

 my possession, is figured ; it is a Sparganium (Burr-reed); the 

 species could not be ascertained, but probably it will feed upon 

 anv of them. 



