274 THE ENTOMOLOGIST. 



at Rannoch, all of which, so far as I could see, were absolutely 

 identical in appearance (and the larva of P. schalleriana is for a 

 Tortrix a very striking one, not easily mistakeable), I reared 

 eight P. schalleriana and three P. comparana ; this seems to leave 

 very little doubt as to the two being forms of one species. 



In the foregoing descriptions of larvae and in those of other 

 species of Tortrices which I have previously made I have not 

 given any details of tubercular and spiracular arrangement. 

 There is, of course, considerable diversity in those in certain 

 groups of Lepidoptera, and these differences are valuable for 

 purposes of classification and otherwise, but in the Tortrices the 

 different species and groups of species are structurally very much 

 alike in these organs, and having been unable to detect any 

 differences that are likely to be of value I have omitted all 

 mention of their structure, which is perhaps preferable to making 

 minute descriptions, confusing as these often are. 



The larvae of all four species here described pupated in con- 

 finement in chambers formed by spinning together a flap of a leaf 

 of their food-plant or by forming the chamber by spinning 

 together two leaves ; but I did not find a single pupa on the 

 food-plants, and there is no doubt but that in a state of nature 

 the larvae usually wander away from them and pupate elsewhere. 



In collecting the various PeronecB larvae found upon Myrica 

 and Vaccininm at Rannoch I carefully examined each one in my 

 lodgings and kei)t the different descriptions separate in tins ; 

 the result was that I saw at once that the great bulk of them 

 consisted of four species, and when they emerged all of these 

 resolved themselves into the four species mentioned in this 

 paper. Not a single imagine of any species appeared in more 

 than one tin, from which it will be understood that the larvae 

 are easily distinguished from each other. In each tin, however, 

 were a very few pupae which have not yet emerged, and which 

 no doubt will not do so this year. I shall be curious to ascertain 

 what species they produce. 



I gathered a number of P. hastiana larvae from sallow ; 

 amongst these were several with black heads, and from this lot 

 I bred two examples of P. riifana ; no doubt they came from the 

 black-headed larvae. 



Youlgreave, South Croydon ; 

 October 2nd, 1919. 



NOTES AND OBSERVATIONS. 



PSELNOPHORUS BEACHYDACTYLUS IN GLOUCESTERSHIRE. Since the 



discovery of this rare Plume moth in the Stroud district it has been 

 my ambition to find a locality for it near Gloucester. This desire 

 was stimulated by the refusal of the Stroud collectors to show me its 

 habitat. Thanks to the kindness of Mr. A. B. Farn, of Ganarew, at 

 whose house I have spent several happy days going through his. 



