1880], 195 



kindly obtained and sent me some large roots from one of my old 

 localities at Norwich, and from these I reared a good number of speci- 

 mens. The larva is cylindrical, moderately slender, colour yellowish- 

 white, with reddish internal dorsal vessel, head bright light brown, 

 plates both faintly brownish. It feeds in May in the root-stocks of 

 Achillea millefolium, generally preferring a large old plant with spread- 

 ing roots, in which a number of larviB live. Each is solitary in its 

 burrow under the bark of the root-stock, which burrow is closed by a 

 tough web, and here it changes to a light brown pupa, the moths 

 emerging from the beginning to the middle of June. "When they 

 emerge, the pupae force themselves out of the burrow, and project 

 just above the surface of the ground. 



I believe that this species is known as alpinana on the continent 

 (our alpinana being there called qucestionana) , and, indeed, I am not 

 sure that this is not the true alpinana of Treitschke. At any rate, I 

 feel certain that Gartner's description of the larvae of alpinana, Tr., 

 appertains to this species : " naked, slender, fat, white, with through- 

 " shining intestinal canal, and clear-shining hair-bearing raised dots. 

 " Head small, shining, honey-brown, dorsal plate faintly brownish. 

 " In October, under the bark of root-stocks of Achillea millefolium, 

 " often joining two pieces together. Pupating in June. Pupa light 

 " yellow-brown." Nothing can correspond more accurately than this ! 



Dichrorampha alpinana, Tr. (?). This species — with broader 

 fore-wings than politana, and a broad rounded dorsal blotch — was 

 reared from roots of tansy growing near Victoria Park, London, by 

 Mr. Machin, at least ten years ago, but the locality has been built 

 upon long since, and I am now indebted to Mr. W. H. Grigg for 

 larvae, which he found feeding along with those of D. tanaceti near 

 Bristol. The roots were actually dug by him from under the snoio last 

 winter. 



The larva is very sluggish, cylindrical, but with the segments 

 slightly swoollen, colour shining pale yellow, with a broad dark purple 

 internal dorsal vessel, visible through the whole length of the body, 

 spots small, blackish, without hairs, head bright chestnut, jaws brown, 

 dorsal plate pale yellowish-brown, anal plate blackish. 



Pound burrowing in November in the root-stocks and lower part 

 of the old stems of Tanacetum vulgare, eating out the pith. At this 

 time they appear to be full-grown, but they remain in the burrow 

 (perhaps feeding a little) all through the winter and spring, and 

 assume the pupa state in the same place ; the moths emerging late in 

 July and in August. 



{To he continued.) 



