THE ENTOMOLOGIST. 19 



Mr. Doubleday for a supply of this larva. — Edward 

 Newman. 



Description of the Larva of Rnsina teitehrosn. — Feeds on 

 Polygonum aviculare (knot-grass), and appeal's to be full-fed 

 at the end of September. Head narrower than the 2nd seg- 

 ment, and susceptible of being partially withdrawn thereinto, 

 very glabrous, with a few scattered bristles : body nearly 

 cylindrical, very gradually attenuated towards the anterior 

 extremity, very gradually incrassated to the anterior margin 

 of the 12th segment, thence suddenly sloping to the anal ex- 

 tremity ; it has a manifest lateral skinfold and a velvety sur- 

 face. Colour of the head dark brown ; the antennal papillae 

 pale at the base : body rich umber-brown, with a very nar- 

 row pale medio-dorsal stripe on the 2nd, 3rd and 4th seg- 

 ments, also a series of pale subdorsal markings on each side, 

 and each of these is bounded below by a darker oblique 

 mark ; lateral skinfold paler ; ventral surface, legs and 

 claspers reddish brown. I am indebted to Mr. Doubleday 

 for a supply of this larva. — Id. 



Life-history of Cnciillia Chamomillce. — The egg is laid at 

 the end of April or beginning of May, on the stems of An- 

 themis Cotula (wild chamomile or stinking feverfew) : the 

 young larva emerges at the end of May or during the first 

 week in June : when first hatched the larva is light green, 

 and is generally to be found coiled round the unexpanded 

 flower-bud ; it grows with great rapidity, and scarcely three 

 weeks elapse from its being found in this diminutive state 

 to its acquiring its full size, which is generally at the end 

 of June, although stragglers may be occasionally found as 

 late as the third week in July ; from the l-2th to the 20th of 

 June may, however, be regarded as the best season for col- 

 lecting them : they are extremely partial to waste places, 

 such as shipwrights' yards and amongst old timber ; they are 

 very local, often occurring abundantly in one spot, and being 

 entirely absent fiom another apparently similar. They do 

 not hide during the day, as is so frequently the case with the 

 larvae of Noctuae, but bask in the sunshine, and continue 

 feeding, more especially on the flowers of their food-plant, 

 amongst which they make great havoc. When full-fed the 

 head is rather narrower than the 2nd segment; the body uni- 

 formly cylindrical and somewhat shining ; the 12th segment 



