NEW BRITISH TINEINA. 97 



(nearly of the size of S. j^yrella)^ it has considerable resem- 

 blance with a species from Southern Russia, which I have 

 received from Dr. Staudinger under the name of S. orjii- 

 chella. 



It is far more mottled than our ordinary birch-feeding 

 >S. griseocapitella^ and the sub-apical white costal spot is 

 unusually large and distinct; the dark blotch on the middle 

 of the inner margin is also more conspicuous than usual. 



My readers will not expect me to describe a new Swam- 

 merdamia from a single specimen, but the larva was so dif- 

 ferent from that of S. griseocapitella, that I apprehend there 

 can be no difficulty in pronouncing it that of a distinct 

 species, and I therefore append a description of the larva 

 received on the 18th September, 1869, from Dr. F. Buchanan 

 White, and which was unfortunately so near pupation that 

 I had not time to get it figured. 



Length 4 lines. Pale reddish-brown, with dark red-brown 

 slender dorsal and broad subdorsal stripes ; head small, 

 black; second segment black, with a slender whitish central 

 line; anal segment with a small black plate. 

 • The sides are more of a whitish-green. 



Makes a web on the twig of Betula nana, and gnaws the 

 leaves. 



I hope those who have an opportunity of collecting 

 amongst Betula nana will bear this insect in mind. 



Gelechia gracilella, n. 



sp. 



Mr. C. Eales, of South Shields, has sent me three speci- 

 mens of a Gelechia which he believes to be new, and for 

 which he proposes the above name. 



They were taken in a green lane, about a mile from South 

 1871. H 



