( XXXV ) 



size of the case no doubt facilitates the larva in turning round 

 in it. I believe this habit of re-entering a case after expulsion 

 or voluntary exit, is unusual in the genus ; in fact, with 

 numerous species, it is practically impossible from want of 

 room to turn round. The larva is also interesting in possessing 

 only three pairs of abdominal legs, which fact, if other 

 characters collateral with it be found, may perhaps be a basis 

 for the subdivision of this huge genus of closely i-esembling 

 species. 



" (2) C. troglodytella. The larva of this species is found 

 upon Inula dysenterica, I. conyza, and Eupatorium cann(d)inuvi 

 in some abundance. Its case is cylindrical, with oblique 

 head-opening, and is composed of silk. It is never abandoned 

 when too small, but is enlarged by the making of a slit on the 

 lower side and filling in with silk, at the same time being 

 lengthened at the anal end. The colour is white, which 

 becomes dirty in time, that portion of the full-sized case 

 which formed the winter case being frequently almost black. 

 This species is abundant in a few localities. 



"(3) C. lixella. This is a very local species confined to a 

 few dry chalky slopes. It is remarkable for feeding after 

 hibernation on various grasses, whereas its food before the 

 winter is the heads of wild thyme. Yery few species feed on 

 plants so far removed in their relationships. Its case for 

 wintering in is formed of a numl^er of dried flowers of the 

 thyme, and is very irregular. These cases may occasionally be 

 found in the early spring affixed to grass-stems, the larvse 

 having vacated them, mined into blades of grass, and 

 constructed therefrom cases having portions of the dried 

 cuticle placed upon them lengthways, and lined with silk. 



"(4) C. laricella. A species feeding upon larch-needles, 

 and notable as being a very destructive pest in some districts. 

 This has recently been shown at a meeting of the Society. All 

 the above species were received from Mr. Eustace Bankes, to 

 whose kindness I am very much indebted. They were from 

 the Isle of Purbeck. 



"(5) C. hemerobiella. A species which feeds vipon hawthorn, 

 pear, apple, etc., and interesting as being one of the first 

 species of the genus to attract the attention of naturalists. 



