THE ENTOMOLOGIST. 453 



in the perfect state. — [Miss'] E.Bethell; Croydon, November 

 23, 1871. 



Edward Newman. 



Description of the Latvce of Acidalia suhsericeata and 

 mancuniata. — The following notes on the larvae of these 

 species or varieties may, perhaps, prove interesting. For the 

 opportunity of comparing the two, I am indebted to the 

 kindness of the Rev. J. Hellins, of Exeter, who sent 

 rae the larvae in July, 1870. They fed on Polygonum 

 aviculare; and, on August 25th, I described them as 

 follows. Suhsericeata : — Length about three-quarters of an 

 inch, tolerably stout posteriorly, but tapering considerably 

 from the 9th to the 2nd segment; head small, nearly 

 as broad as the 2nd segment, and notched on the 

 crown ; a division in the centre of the face renders the 

 cheeks, which are rounded, prominent and distinct; body 

 flattened when seen from above, but rounded on the ventral 

 surface ; divisions of the 6th, 7th, 8th and 9th segments, very 

 conspicuous, the anterior end of each being narrower than 

 the posterior ; there are a few scattered, but scarcely per- 

 ceptible, hairs, most conspicuous on the 2nd segment, when 

 they are pointed forwards; skin ribbed transversely and 

 rather tough ; ground colour composed of several shades of 

 brown and ochreous, the 8th and 9th segments being con- 

 spicuously of the latter colour, some specimens having a 

 faint green tinge ; head ochreous, surrounded with dark 

 brown ; mouth, and central divisions of the face, black ; 

 from the notch in the head extends the fine pale grayish 

 dorsal line, bordered on each side with an eqtially narrow 

 dark line ; dorsally, on the anterior part of the 9th segment, 

 is a conspicuous rust-coloured mark, shaped somewhat like 

 an arrow-head, the apex pointed anteriorly ; there are a 

 number of confused brown markings along the spiracles, 

 which are of a still darker brown ; usual segmental dots 

 conspicuous, black; the ground of the ventral surface is of a 

 beautiful slate-colour, with a series of curiously-shaped dull 

 black marks throughout its entire length, which give it a 

 very pretty appearance. When at rest the food-plant is 

 grasped by the claspers, the body stretched out at full 



