CARNIVOEOUS BUTTEEFLIES CLARK 487 



usual in lyca-nid larvae is only indicated on tlie posterior half of each 

 segment. The sides are sloping and convoluted to the spiracles. 

 The lateral ridge is dilated, swollen, and prominent, but rounded, 

 and the ventral surface is full and of a bulbous character. The 

 rather small feet arc well pro^•ided with strongly curved hooks. 



All of the other sti'uctural details are as in the larva after the 

 third molt; but on examining the fully gi'own specimen Mr. Fro- 

 hawk found that all tlic long dorsal hairs had been broken or worn 

 off short, leaving only a series of basal stumps. 



The color is a pale creamy ochreous witli a pinkish lilac tinge along 

 the lateral ridge and surrounding both the first and last segments. 



When first found the entire skin had a shining distended appear- 

 ance as if too tight for its obese proportions. 



Doctor Chapman found that in a nearly full-grown larva the honey 

 gland, which is so conspicuous in tlie autumn larva, owing to its com- 

 paratively large size, remains of the same size and therefore looks 

 extremely small owdng to the expansion of the rest of the larva. He 

 is inclined to regard it as still functional, the four circles seen at the 

 bottom of the hollow being very distinct. He saj^s that possibly, 

 however, these would look just the same if the function were in abey- 

 ance, although they are certainly a feature of all functional honey 

 glands that he has examined. 



This remarkable caterpiller passes over 10 months of its existence 

 in its last stage, succeeding the third molt. 



The full-grown larva described by Mr. Frohawk pupated on the 

 surface of the ground fre? of web. At first the pupa is a clear, pale 

 apricot yellow, which very gradually deepens to a dark amber color, 

 excepting the wings, which remain light ochreous. 



Lyc^na arionides 



Dr. T. A. Chapman remarks that this species which, though dis- 

 tinct, is exceedingly close to L. arlon, probably has the same larval 

 habits. 



Lycena alcon 



On October 2, 1918, Dr. T. A. Chapman exhibited before the 

 Entomological Society of London a bred specimen of Lycana alcon, 

 probably the first specimtn that had ever been bred, certainly the 

 first from larvse taken in the autumn. 



The larva of this species, which is green, has a well-developed 

 hone}^ gland. The eggs are generally laid on the calyx, and many 

 flower heads have a large number of eggs on them, probably each 

 laid separately. The caterpillars live amicably together, being 

 devoid of the fiercely cannibalistic habits characteristic of the larvae 

 of L. avion. 



