164 THE ENTOMOLOGIST. 



day being warm with considerable sunshine, three more left 

 their hybernaculums. I therefore gave them young shoots of 

 clover, on which they fed, perforating the leaves, and also bored 

 into the swollen shoots enveloping the young leaves, feeding 

 on the interior in the same way as L. argiolus larvae feed on 

 young holly-berries. The following days they continued feeding 

 at times. 



On April 1st another left its hybernaculum. 



Third moult : on April 8th the first one moulted the third 

 time, followed by one moulting on the 9th, another on the 10th, 

 and others fixed for moulting on the 11th. 



Before third moult, two hundred and thirty-nine days old, it 

 measures J in. long when fixed for moulting. Of a very pale 

 yellowish flesh-colour ; all the markings dull pale pinkish, giving 

 the larva a pale flesh-coloured appearance. 



One of those which left its hybernaculum on March 20th 

 was kept solely on furze-bloom, and moulted the third time on 

 April 15th. They remain some days fixed for moulting. 



After third moult, two hundred and forty-five days old, it 

 measures ^ in. long. The ground colour is now of a pale ochreous 

 green, with the dorsal, subdorsal, and lateral stripes dull pinkish 

 drab ; otherwise it is very similar to the previous stage, excepting 

 it is more densely studded with hairs of varying lengths ; each 

 with a darker green truncated swollen base encircled with a 

 series of black points ; there are also numerous spiracular-like 

 discs ; a gland on the tenth segment, and on the eleventh seg- 

 ment below and behind each spiracle is a retractile tubercle. 

 They continued feeding on the tender shoots of clover, preferring 

 the young expanding heads of the plant, and feed at all times 

 during the day. 



Fourth moult, April 26th. After this moult the larva is 

 wholly of a clear green colour. 



After fourth and shortly before moulting the fifth time it 

 measures -^^ in. long. Similar to previous stage, excepting the 

 hairs are longer, and the ground colouring is a clear light green, 

 with darker green but somewhat indistinct markings. 



On May 2nd two fixed for fifth moult ; one moulted late 

 afternoon of the 4th, the other early on the following morning ; 

 while on this day four others were fixed for the fourth moult, and 

 one feeding in the same stage ; also one larva still in the third 

 stage, which remained in partial hybernation, as it shifted its 

 position on May 3rd, but not then left the dead part of the plant 

 which formed its hybernaculum. This one again moved on 

 May 17th, when I placed it on a clover-blossom, upon which it 

 rested for a week, and died on May 25th, having lived for about 

 two hundred and eighty days without feeding. 



The one that moulted on May 4th for the fifth and last time 

 became fully grown and spun up for pupation on May 17th, and 



