xl New British Argyresthia. 



Aphis assidua. 



The winged viviparous female.— The body is green : the disk of the thorax is pale 

 brown : the antennae are black, slender, and shorter than the body : the eyes are darh 

 brown : the rostrum is pale green : the tubes are dark green and about one-fourth of 

 the length of the body : the legs are dull green and moderately long ; the thighs are 

 pale green at the base ; the tarsi and the tips of the tibiae are brown : the wings are 

 colourless and nearly twice the length of the body ; the squamulae and the costal veins 

 are dull pale green ; the stigmata are pale brown ; the veins are brown. 



First var. — The body is dark dull red. 



Found in the beginning of May. 



F. Walker. 

 March, 1849. 



Art. VI. — Description of a New British Species of Argyresthia. 

 By H. T. Stainton, Esq. 



Sp. — Aurulentella, Zeller in litt. 



Expansion of the wings 3f lines. 



Closely allied to praecocella, with which I had confounded it ; but differs in being 

 smaller in the head and middle of the thorax being white, and in the posterior wings 

 being narrower and their cilia more yellowish. 



Not scarce among the junipers at Sanderstead, at the end of July and beginning 

 of August. 



The following corrections are necessary at page xx., in the account of praeco- 

 cella : — 



For " expansion of the wings 3f — 4f lines," read " expansion of the wings 4£ — 

 4f lines." 



In the notice of capture strike out from " At the end of July, &c," to the end of 

 the paragraph. 



Of proecocella I have only the two specimens mentioned : aurulentella I first took 

 in 1845, and have given to several entomologists, at first as juniperella, and last 

 autumn as prscocella. 



H. T. Stainton. 



Mountsfield, Lewisham, 

 March 12, 1849. 



