266 [December, 



by a thick tuft of downy scales which are brown beneath, greyish-white or yellowish 

 above ; from within this, and from the middle of the body, projects a long ovi- 

 positor in three telescopic sections. Antennae very short, but visible under a magnifier. 

 I have condensed Bruand's description, the preserved specimens hardly furnishing 

 sufficiently accurate characters. On emerging from the pupa the female withdraws 

 herself from the case, but remains upon it, clinging tightly with her long strong 

 legs, and keeping her ovipositor inserted in the opening from which she has emerged. 



The larva is light purplish-brown, with two deep red dorsal lines, and another 

 below the spiracles, extending along the 2nd to 4th segments, afterwards becoming 

 obliterated ; between the dorsal lines, on the 2nd and 3rd segments, is a deep brown 

 spot ; head horny, shining, light brown or red-brown, with numerous slender 

 blackish markings. The case is formed inside of silk, outside of bits of dried grass, or 

 occasionally slender twigs of dried plants, placed longitudinally and nearly parallel ; 

 it is thick in proportion to its length, and often formed of rather stout materials. 

 The pupa state is passed in the case. 



The original localities, here, have been destroyed or rendered inaccessible, and 

 I know of no recent captures of the species, but it must occur in other woods 

 skirting the valley of the Thames. 



F. INTEEMEDIELIA, Bruand. — This is smaller than the last, the apex of its 

 fore-wings rather more rounded, but the costa rolled back slightly in the middle so 

 as to interfere with the regular ovate form of the wings. It has a bright golden, or 

 bronzy, gloss over its dark brown colour, and is well and generally known, its case 

 being found on fences, palings, and tree trunks in woods over a large portion of the 

 country. By collecting these when they are fastened down for pupation, the insect 

 is easily reared. The female is very like that of the last species, the anal tuft rather 

 more brown, but it has slender, drooping antennae lying in a curve close to the head ; 

 its habits are similar. The male flies in a very lively manner in the early morning 

 sunshine, and again in the sunshine late in the afternoon, and is readily captured. 

 The larva is deep purple-brown ; head dark brown or blackish, with faint yellowish 

 lines ; three following segments yellowish, each with a transverse blackish plate, 

 extending downwards to the legs, which are long and strongly made, blackish. 

 Case rather thinly constructed, of silk covered with slender bits of dried grass placed 

 longitudinally, some parallel, some rather diverging, so as to give it a rather loose 

 appearance. Pupa of the male of ordinary form, the wing and limb cases thrown 

 off in one piece when it emerges ; of the female vei'y like that of a Dipteron, except 

 that the leg cases appear in a little bunch close to the head. This species occurs 

 also in both Scotland and Ireland. 



F. EOBOEICOLELLA, Bruand. — The male has its fore-wings decidedly broader 

 and rounder that those of any other of this group, yet is very closely allied to the 

 two preceding. Its colour is dai'ker, bronzy blackish-brown, shot with purplish, not 

 so smoothly glossy as in F. intermediella ; the female similar in appearance and in 

 habits to that of the preceding, but having a white tuft to the anal segment. Larva 

 purplish-brown, with the head and dorsal plate black, and short black stripes on the 

 3rd and 4tli segments. Its case is formed of silk, usually covered with short bits of 

 dried grass, but often with bits of fir needles, bits of various dead stalks, or thin 



