294 ORAMBUS CULMELLUS. 



By the middle of October the larva is just a little 

 over one-eighth of an inch long, and proportionately 

 stout, its form cylindrical and slightly tapered only 

 at the hinder segment, having all the segmental divi- 

 sions well cut ; the head is of an opalescent or whitish 

 flesh-colour with conspicuous black ocelli ; the second 

 segment is of similar pale colour, but having an in- 

 ternal leaden-grey blotch showing through the sur- 

 face; the rest of the body is pinkish-brown, with the 

 anal flap pale as the head, the horny tubercular spots 

 close together and concolorous ; its gallery or tube is 

 a quarter of an inch long, composed of silk, covered 

 with frass having the appearance of finely-gnawed 

 grass. 



After hibernation the new gallery is formed between 

 a few blades of grass, about the distance of an inch 

 and a half above the ground, and is covered with fine 

 particles of moss and of withered remnants of grass 

 blades, or with frass only ; early in March its occu- 

 pant is more than three-sixteenths of an inch long, of 

 an uniform brown colour, the spots ouly noticeable by 

 their gloss. 



Towards the end of April the larva has grown to 

 the length of three-eighths of an inch, moderately 

 stout in proportion, though gently tapering from the 

 thoracic segments to the thirteenth ; its colour much 

 paler, without any difference in that of the head, 

 plates, spots, or the skin of the body, except that the 

 latter is dull and all the former shining. 



During June the larva attains its full growth of 

 half an inch in length, or a trifle more; the skin of 

 the bodv is still a lisfht flesh-colour, but the head, 

 plates, and spots show more distinctly from it of a 

 light warm cinnamon glossy brown, the spots not 

 quite so large in proportion as with many of the 

 genus; the parts of the mouth are outlined with 

 darker brown, and each lobe on the crown of the 

 head is margined by a short blackish-brown streak, 

 and has besides a few other spots and streaks above ; 



