19'^-: 115 



ami foniu'd a weak sort of cocoon ; others, not being supplied witli soil that could 

 bo easily penctratod, retired under the stems of their food-plants, and in angles formed 

 by the branching stems spun a few weak threads to keep themselves in place. 



The pupa is barely half-an-inch long, dumpy in figure ; the profile of the back 

 swells out at the thorax, drops in again at the waist, and the abdomen slopes off in 

 a curve to the rounded anal end ; the ventral profile is much straighter, though still 

 with a slight curve ; the wing-cases reach more than two-thirds of the whole length, 

 and the widest part is just whei-e they end ; the thorax and wing-cases are slightly 

 glossy, the abdomen granulated ; there are some very small hairs scattered all over ; 

 the colour is at first greenish on the wing-cases, greenish-brown on the rest of the body ; 

 afterwards ochrcous all over, and finally turning very dark the day before the 

 imago emerges. 



On comparing the larva; of Adonis, which I sent him, with figures of Cort/doit 

 made some yeai-s ago, Mr. Buckler could detect no point of difference except a soine- 

 what different tint in the green ground colour ; this made us very anxious to see 

 the larva of Corydon again, and our wish was very soon gratified in an unexpected 

 manner. My friend had sent me a great many plants of Hipjiocrejris comosa for my 

 lai-vfE, and upon one of these that had not been wanted for their use, I found, on 

 June 8th, a half-grown Lyccena lai-va, which had evidently travelled to me out of 

 llampBhirc with its food : I had been told that Corydon and not Adonis occurred at 

 the place whence the plants were procured, but this larva was so like those I had 

 lately reared, that I was quite puzzled : luckily, Mr. Buckler and myself had just 

 been comparing the notes we had made of Adonis, and so, seeing in this larva all 

 that I had seen in Adonis, except that its bristles -were brown instead of black, I 

 sent it on to him at once, drawing his attention to a little point which I had wished 

 liim to notice in Adonis. Thus, with every incentive to exactness, he examined and 

 figured it most carefully, finding nothing to notice but the thit of the ground colour and 

 the hue of the hairs, and then kept it apart, waiting to see what the imago would 

 prove to be, till on July 31st there appeared a fine L. Corydon. 



As far, therefore, as our means of comparison have gone, our materials to work 

 upon being some dozen and a-half larvae of Adonis on the one hand, and this one 

 larva of Corydon and figures of others taken in 18G2 on the other, we can say that 

 the two species resemble each other in the larval state in every particular of form 

 and ornamentation except these two points : Adonis has its ground colour deeper 

 green, with the hairs or bristles black, while Corydon has the ground colour of a 

 lighter, brighter green (a green with more yellow in its composition), and the hairs 

 light brown. 



I have been thus miiuitely circumstantial in relating what was done by us 

 because the result wc have arrived at is not altogether in agi'oenient with what wc 

 liave been able to find already published. Thus in Stainton's ^lanual there are 

 descriptions from Froycr, which, according to our observations, rightly distinguish 

 between the green of Corydon and the dei^p green of Adonis, but err in making the 

 number of yellow dorsal streaks different, for Adonis certainly has but eight in a 

 row, and not twelve. 



The only other author accessible to us, Boisduval, speaks of " le grand rapport 

 "qu'il y a ontre ccttc chenille (Corydon) et colle d'Adoni.';," and gives every point of 

 figure and marking as identical, but goes on to say that Adonis " est d'un vert tri^s 



