hetvMen lepidopterotcs larvm and fJieir surrounrlings. 347 



grey larva was painted on May 28th, and is shown in Plate 

 XVIII, fig. 2. It was sent to Lord Walsingham on 

 May 31st. 



H. The hrovmisli qncrcifoUa larva and the larva with hhmh- 

 ivhite marks on lichen-covered sticks throughotbt. 



A2iril 7th. Ke-fed. One larva dead ; the other grey 

 and white. The larva was re-fed on the 10th, 16th, 20th, 

 23rd, 26th, and on May 3rd. Its appearance remained 

 unchanged. On all these dates except the last it was 

 noted that the larva was at rest on the sticks. On May 

 5th it was dead. 



III. THE QUERCIFOLIA LARVJi ON BROWN BRAMBLE- 

 STEMS BEFORE HYBERNATION. 



I. Foi(r 'Uniform qiiercifolia larvm on lichen- coveixd sticks 

 d.uri7ig and after hybernation. 



April 7ih. Re-fed. All 4 dark brown, 2 rather darker 

 than the others. 



April 10th. Re-fed. All 4 at rest on sticks: 2 un- 

 changed, and 2 had changed skin, becoming respectively 

 dark grey with white patches and blackish-grey with white 

 patches and brown marks, 



April IMh. Re-fed. Larvae on sticks. The larger ones 

 unchanged. The 2 smaller had now changed skin, be- 

 coming respectively very dark blackish-brown with white 

 marks, and dark brown mottled with pale grey. 



Apiril 16th. Re-fed. Larvae on sticks. The 2 larger 

 darker larvse were now placed in another cylinder. The 

 two remaining were respectively — mingled shades of dark 

 and light grey with brown patches, and a uniform grey 

 with large white patches. These 2 larvae were re-fed on 

 April 21st and 23rd without change. They were always 

 at rest on the sticks. 



April 2Qth. Re-fed. Both larvge on sticks. One larva 

 retained same appearance, grey with brown patches ; the 

 other was of a pale brownish-grey with paler marks. 



May 1st. The latter larva had become of a much darker 

 brownish-grey Avith brown and pale marks. On May 3rd 

 they were re-fed, and both were on sticks : appearance 

 unchanged. 



May 11th. Both larval' on ^sticks. The last described 



