NEW BRITISH TINEINA. 129 



than in PulclierrimeUa; moreover, the terminal joint of the 

 palpi in that species is pale, with two distinct black rings ; in 

 Olerella, except the extreme tip, which is pale yellowish, it 

 is entirely of a blackish-brown. 



** Expansion of the wings 9 lines. 



" Head reddish-grey, face paler; second joint of the palpi 

 reddish-grey, darker beneath ; terminal joint entirely blackish- 

 brown, except the extreme tip, which is yellowish. Antennae 

 reddish-brown ; anterior wings reddish-brown, wath nnmeroiis 

 short, black, longitudinal streaks, interspersed \\\i\\ whitish 

 scales ; a small white spot on the disc, beyond the middle, 

 is rather conspicuous (though less so than in Albipunctella) : 

 beyond it is the pale hinder fascia, rather sharply angulated, 

 and followed by a dark-fuscous cloud ; cilia reddish-gre}' ; 

 posterior wings pale grey, with greyish cilia. 



" The larva is green, with the dorsal vessel slightly darker, 

 and a reddish tinge on the back, most distinct along the sub- 

 dorsal lines; the head is brown, darker behind; the second 

 segment has two black lunular marks. 



^' It feeds on the common yarrow (Achillea millefolium) 

 from the middle of June to the beginning of July ; it draws 

 several leaves towards the stem, and, fastening them there, 

 constructs a tolerably secure habitation, within which the 

 full-fed larva frequently undergoes its transformation to the 

 pupa state. The perfect insect makes its appearance at the 

 beginning of August, and is sometimes met with in the spring 

 after hybernation." 



Gelechia Pinguinella, Treitschke. 

 Scemylis pinguinellai Treitschke, ix. 1, 244. 

 G. 'pinguinella^ Frey, Tin. u. Pter. d. Schweiz, p. 100. 

 Specimens of this insect, which is quite new to the British 

 List, were exhibited by Mr. Bond at the August meeting of 

 1865. K 



