THE ENTOMOLOGIST. 63 



becoming 'tinted with pale brownish, the sides of the in- 

 ferior surface of the thorax, not having become discoloured 

 stood out conspicuously white ; they however shortly after- 

 wards settled down to a similar tint to the other portions. 

 When irritated the pupa, besides lashing its abdomen 

 about, was then able to move its two anterior pairs of legs 

 slightly. I observed no movement of the posterior pair, while 

 all parts of the markings of the future imago were slowly 

 settling down to their final coloration ; the ivory-white spot 

 situated on the little animal's breast became impregnated with 

 a reddish-coloured fluid, which distributed itself over the 

 abdomen and breast, even permeating the elytra, and at first 

 sensibly affected their colour ; to the abdomen and breast it 

 imparted a dull red tinge. In two or three instances this 

 mysterious pigmentary matter was observed to have assumed a 

 crimson hue, in which cases the little insects so affected never 

 arrived at maturity : in aiost cases, after the lapse of a few 

 days, the insect's markings settled down to their natural and 

 proper colours, and the little coleopteron liberated itself 

 from its puparium ; the breast and abdomen of some indivi- 

 duals, however, were observed, for many days after they had 

 escaped from their puparium, to be more or less discoloured 

 by the reddish-coloured pigment. 



It was my good fortune to be present at the emergence of 

 one little fellow : it effected its partial escape by first splitting 

 open the back part of its puparium, and through the fissure 

 thus made it put out its head, and looked about in what ap- 

 peared to me a most droll sort of a manner : after a little 

 rest, a further splitting of the puparium took place to the 

 extent of the four anterior segments, in an exactly similar 

 way to what I had observed when a larva; it then drew its 

 two anterior pairs of legs out of their sheaths, and, after 

 twiddling its legs about for a few minutes, finally drew out the 

 remainder of its body and toddled off about its business. 

 Having about a dozen of the imagos in a box, I offered them 

 a similar diet to what they had enjoyed whilst in the larval 

 state, but they did not appear to care much for the proffered 

 food : one of them shortly afterwards died, and his comrades 

 ate every bit of him excepting the elytra; others that were 

 shut up with a larva of their own species, never injured it, 

 but when a larva of the alder raining saw-fly, Phyllotoma 



