356 LEPIDOPTERA, 



Larva dirty yellow or very light brown, tending toward 

 wine-colour, with two deep red-brown dorsal lines, between 

 which, upon each of the three first body-segments, are two 

 deep-brown spots ; beneath the stigmata is a longitudinal 

 stripe of the same colour as the dorsal lines. All these 

 stripes and lines are moi'e strongly indicated upon the first 

 body- segment than upon the two following, and are obliterated 

 upon the fourth. Head horny, shining, of a light brown or 

 red-brown, with five streaks and two dots of blackish-brown 

 upon each lobe, and a dash of the same near the mouth ; the 

 upper line is bent in a degree oppositely to the lower. They 

 start near together at the neck and meet again at their 

 extremities ; the second and fourth lines form a sort of cross, 

 thence their points are turned toward the mouth ; between is 

 placed the third, which is paler than the others ; the two dots 

 are at the end of this third line, one above, the other a little 

 below ; upon the head and anterior segments are rather long 

 and very slender grey bristles ; on the rest of the body others 

 shorter and nearly invisible. The case is composed of bits 

 of dried grass, or twigs of dried plants, placed longitudinally 

 and rather parallel. It is thick in proportion to its length, 

 and much thicker than those of the following species. The 

 young larv« hatch in July, pass the winter as larvae, and are 

 full-grown at the beginning of April. After hybernation it 

 appears on the first fine days of spring. One meets with it 

 on rocks facing the east or south and against old walls covered 

 with herbage and brambles. (Bruand.) Here again I have 

 copied the original description, since there is some doubt 

 about our own records. The cases were described by Mr. 

 Mitford as more slender than those of F. rdboricolclla ; more- 

 over, they were all found in woods, and showed a preference 

 for felled trunks of trees, and I fear that the different forms 

 or species were mixed. 



Pupa brown, in the case formed by the larva. 



First recorded in this country in 1868 by the late Mr. 



