THE ENTOMOLOGIST. 



No. 59.] NOVEMBER, MDCCCLXVIII. [Price 6d. 



Life-history of Tmniocampa rubricosa. — The eggs are laid 

 about the middle of April, on dock, and are hatched in a few 

 days : the young larvae continue feeding until the first or 

 second week in June. When full-fed the larva rests in a 

 straight position on the leaves or leaf-stalks of the dock, but 

 rolls Itself in a compact ring and falls to the ground when 

 annoyed ; the head is small but exserled ; it is narrower than 

 the 2nd segment, but never received into it ; the body is 

 velvety and obese ; it is rather attenuated at the anterior ex- 

 tremity ; the colour of the head prior to the last moult is dull 

 brown, with a paler reticulated line down the middle of the 

 face and another on each cheek ; the body is umber-brown of 

 two shades, which form bands across the back, the paler 

 bands being at the interstices of the segments ; the entire 

 surface is delicately reticulated ; there is a short white or 

 yellow linear mark on each side of each segment; this is 

 always in the dark bands, and above each of these marks 

 are two round white dots ; there is a bright continuous yel- 

 low stripe just below the spiracles, which are black, and 

 which touch and seem to rest on this yellow stripe ; the 

 colour of the spiracles is alwaj^s black ; the ventral is rather 

 paler than the dorsal area, and the legs and claspers are of 

 the same colour. After the last moult considerable change 

 takes place in the colouring ; the bright yellow stripe in the 

 region of the spiracles disappears, and its position is only to 

 be traced by searching with a lens along the side, when a 

 very indistinct stripe will be found just below the spiracles, 

 except on the 2nd segment close to the head, where an 

 ochreous-yellow line clearly marks the site where the bright 

 yellow line commenced ; the white or yellow linear spots on 

 each side of the back remain very distinct ; and in the space 

 between each of these is a circular white spot ; immediately 

 above, it is of an intensely dark velvety brown, almost black ; 

 the ground colour below each linear spot is also very dark, 



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