OBSEKVATIONS ON BRITISH, ETC., TINEINA. 125 



and, descending into the sand at the bottom of the cage, 

 formed cocoons there. 



. Micropteryx, sp. ? (Descr. No. 10). On the 6th of May 

 I examined some young birches near Chislehurst, and ob- 

 tained two sorts of Microipteryx larvae. One, which was 

 whitish, may not be truly distinct from that above described 

 (Nos. 8 and 9), but the amount of excrement was mucli less, 

 and the lateral protuberances on the fifth segment, which T 

 had not observed in Nos. 8 and 9, were evident. 



Micropteryx, sp. ? (Descr. No. 11). This was a grey 

 larva collected in birch leaves near Chislehurst on the 6th of 

 May, and near Shirley on the 14th. 

 My description of it is as follows : — 



No. 11. Dark grey; head reddish-brown, darker at the 

 sides; second segment with two black marks of irregular 

 form ; fifth segment with shght lateral protuberances. 



Micropferyx subpurpurella ? On the 8th of June Mr. 

 Wilkinson met with a Micropteryx larva in oak leaves, 

 which in all probability will prove that of Subpurpurella. 

 On the 9th of June Dr. Hofmann met with some of the 

 same larvae at Spandau, near Berlin. From these I made 

 the following description : — 



No. 27. Whitish-yellow, no markings ; the dorsal vessel 

 greenish-grey; head reddish-brown; on the fifth and sixth 

 segments there are slight lateral protuberances. 



As the larvse were found by Mr. Wilkinson during ray 

 absence on the Continent, he forwarded them to Mr. Douglas, 

 from whose observations I make the foUowino; extracts : — 



" Feet entirely wanting; when placed upon a sheet of 

 paper the larva was able to move in a tolerably straight line, 

 for some time, by drawing itself together and pushing itself 

 along by the extremity of its last segment, but having nothing 

 to hold by it continually rolled over. 



