EUPITHECTA INNOTATA. 39 



back the ground is tinged strongly with greyish, but 

 at the end of each is whiter. Some rough [a word 

 illegible here] minute white dots at either end of each 

 segment give a granulous effect. On the belly the 

 ground is a pale whitish or bluish-green, with a 

 central ventral line of black, and a broad black stripe 

 bounds the ventral surface on either side. 



At the end of October I tried the larvre with seed- 

 vessels of Solid ago virgaurea, to which they at once 

 took in preference to mugwort. Unfortunately while 

 changing food a few clays later one was accidentally 

 killed, and the other continued to feed only on the 

 Solidago. This larva lingered on until the 22nd of 

 November and then died, not having grown at all 

 since it became the size of the one figured; and it 

 seemed not to have fed for several days, as no frass 

 could be seen. (William Buckler, 22nd November, 

 1883; Note Book IV, 220.) 



EUPITHECTA EXTENSARIA. 



Our fortunate discovery, in 1887, of Eupitliecia 

 extensaria on this coast [Norfolk] was duly followed 

 in September by the discovery of its larva feeding, as 

 we expected, upon Artemisia maritima. 



It is a pretty larva of a rather bright green with 

 whitish longitudinal lines, the subdorsal and spiracular 

 lines being broad, and one along the ventral area 

 narrow. The spiracular line is also more or less 

 edged below with pinkish-brown. Head green, with 

 pinkish-brown mouth ; legs also pinkish-brown, 

 claspers green, swollen and glossy. 



The entire larva is a combined plan of mimicry, — its 

 body is striped precisely like the curiously grooved 

 sprays and footstalks of the Artemisia, which exhibit, 

 alternately, green skin and white down ; the pinkish- 

 brown mouth and feet, drawn together when the larva 

 is at rest, exactly resemble the opening buds of the 



