176 THE ENTOMOLOGIST. 



legs are nearly of the same colour as the ventral surface, but 

 scarcely so glaucous ; the anal flap and claspers are generally 

 tinged with pink ; in one specimen they are bright red. On 

 the 14th of August two of my specimens spun very complete 

 cocoons among the leaves of knot-grass, using the leaves 

 as a coating to the cocoon, and thus entirely concealing 

 themselves from sight; and on opening these four days later, 

 namely on the 18th, I found them suspended head down- 

 wards from little pads of silk : on the following day they 

 had changed to pupae, and were suspended from the silk by 

 means of six hooks or cremastrse at the anal extremity ; these 

 were in three pairs ; all of them were rather long, but one 

 pair longer than the others : the pupa is smooth, rather 

 obese, and rather pointed at the anal extremity ; the pre- 

 vailing colour is olive-green ; the wing-cases are very green, 

 the wing-rays being whitish and rather conspicuous : the 

 bod}' is inclined to dingy brown, and each segment has 

 a double series of oblong spots of a darker brown ; the spots 

 themselves, as well as the series, are placed transversely. 

 The moths emerged at the end of August. Mr. Button, so 

 well known for his indefatigable zeal as a collector, was the 

 fortunate captor of this beautiful geometer in Esse:i, in the 

 autumn of last year, as already recorded at p. 352 of the 

 fourth volume of the * Entomologist.' From somewhat wasted 

 females he procured a supply of eggs, and subsequently an 

 abundant crop of larvae. With his customary liberality he 

 has placed some of them in my hands, and I have great 

 pleasure in publishing this description. — Edward Neicman. 



Description of the Larva of Acidalia rusticata. — It rests 

 in a bent position, its claspers attached to its food-plant, and 

 its anterior extremity raised : the head is slightly narrower 

 than the 2nd segment, and is partially received therein ; it is 

 divided, but not deeply, on the crown ; it is beset with 

 numerous linear fleshy processes which have the appearance 

 of elongated warts : the body gradually increases in width 

 after the head ; it is much dilated on the sides, and has two 

 indistinct ridges on the back ; the incisions of the segments 

 are well marked, and each segment is obviously divided into 

 six sections by transverse furrows, besides the manifest skin- 

 fold which intervenes between the segments ; the sections 

 are composed of wart-like projections, which give a rough 



