DORSET LEPIDOPTERA. 175 



certain individuals, probably the latest in spinning-up of the brood 

 which is full-fed in July, remain in the larval state in a hybernat- 

 ing condition until some time during the ensuing spring, when they 

 change to pupae and emerge in the following June to perpetuate 

 their species. The rest of the brood of July larvae change to pupae 

 within a few days of spinning-up and emerge in August. It must 

 be remembered that the apparently larger numbers of the August 

 emergence would be influenced by the fewer perils to which these 

 individuals are subject compared to those which pass the winter as 

 larvae. This state of things is known to exist in some of the larger 

 moths in which those which appear in autumn are generally, if not 

 always, infertile. I am not aware that it has been observed 

 amongst any of the smaller species, including the family Tortricina, 

 which contains the subject of this note, but it may, no doubt, if 

 confirmed by subsequent observation, explain other cases in which 

 there now appear to be two broods in a season, especially some 

 other species of this genus. 



I append a description of the larva which I have also sent to the 

 Ent. Monthly Magazine (E.M.M., xxvii., 239) : Length, 6 lines ; 

 shape, decidedly stumpy, the head being only about half the 

 breadth of the middle segments, the width of each segment 

 increasing gradually up to the 5th, after which there is but little 

 alteration of breadth up to the 12th, which is narrower, the 13th 

 being still more narrow and about equal in breadth to the 2nd ; 

 the transverse section of the body would be nearly circular. 



The head is polished, very dark greyish brown, nearly black, with 

 a reddish tinge about the jaws ; plate on 2nd segment like the 

 head, but somewhat mottled with a lighter shade of the same 

 colour and with a lighter brownish dorsal line ; ground colour of 

 larva generally a very light greyish brown, but sometimes distinctly 

 pink, rather darker above the spiracles, especially in the first few 

 segments. The dorsal vessel shows through as a rather darker 

 brown dorsal line. The usual warts are large and conspicuous, 

 though not much raised, those near the head being of the colour of 

 the plate on 2nd segment, whereas the rest become gradually 



