Royal Physical Society. 409 



in Leven Quarry. The larvae of this species, like the rest of 

 the genus, have the singular habit of living, during the first 

 part of their existence, as miners in the parenchyma, and 

 afterwards emerging, and spinning themselves up in flat 

 circular silken cocoons on the leaves, where they change their 

 skins, and then, leaving their retreats, they feed externally, 

 like other larvae, till full grown. Leaving the coast, and pro- 

 ceeding along the banks of the Esk, the larvse of Lampronia 

 quadripunctella were found in some numbers boring in the 

 buds of the wild roses on the sides of the river. 



Having again obtained eggs of Petasia nubeculosa from 

 Rannoch in Perthshire, I succeeded last summer in rearing 

 the larvse, and found they fed indiscriminately on birch, elm, 

 lime, alder, and various species of fruit trees ; so that there 

 seems no reason, if the occurrence of their food were the only 

 thing which influenced the distribution of insects, why this 

 species should not be spread all over the country. I also suc- 

 ceeded in rearing Coremia Salicata and Aplocera flavicinc* 

 tata* from the egg. The former is an instance of the small 

 amount of dependence which can be placed in specific names 

 as indicating the habits of the insects to which they refer, the 

 larva feeding not on Salix, but on the various species of 

 Galium ; the latter, which has sometimes been considered 

 doubtfully distinct from Aplocera cazsiata, is, I have no 

 doubt, a perfectly distinct and good species ; and I hope to 

 prove that it is so, during the ensuing summer, by rearing 

 co3siata likewise from the egg.f The most conclusive proof 

 has been obtained, on the other hand, during the past season, 

 of the complete identity of the two supposed species of Eu- 

 pithecia, subfulvata and cognata, both having been reared 

 from eggs deposited by the same insect. The larvae of Aplo- 

 cera flavicinctata were fed on Saxifraga hypnoides and 

 granulata, in an open glass cylinder placed in a flower-pot in 

 the garden, and were always most active and voracious during 

 wet weather, and, when saturated with moisture, pointing out 



* Ruficinctata, Guenle. 



* Since this paper was read the second volume of M. Guenee's " Phalaenites" 

 has appeared, and he is of opinion, not only that our Highland species is dis- 

 tinct from Ccesiata, but that it is distinct from the Flavicinctata of Hubner. 



