between lepidopterous larve and ther surroundings. 345 
dark grey larva, having been sent to Lord Walsingham on 
this date. The remaining large larva was dark brown 
with large yellowish markings; the small larva had 
changed its skin and was bluish-grey. The larve were 
re-fed on the 17th and 22nd, when they were on sticks 
and unchanged in appearance. The larger larva appeared 
to be unhealthy on the 22nd and died on the 23rd. 
May 15th. Re-fed. The colour of the small larva was 
unchanged, as also on June Ist and 7th. It continued to 
grow slowly without further change, and finally spun up 
on July 28th. 
E. Three dark, white-marked quercifolia larve, ineluding 
the darkest but one in II, on black twigs during and after 
hybernation. . 
April 7th. Re-fed. 
April 10th. Re-fed. All 3 larve on twigs. ‘Two larvee 
had changed skin, but the appearance of all 3 remained 
the same, viz. black with very conspicuous white markings. 
They were unchanged and at rest on the twigs when 
re-fed on the 16th, 21st and 23rd. 
April 26th. Re-fed. All on twigs. The dark colour of 
the larvae appeared to have become more distinctly grey— 
dark grey in two cases, grey in the third. As before, the 
dark shade was combined with white markings. 
May 2nd. One dark grey and white larva had changed 
skin and was blackish and white, 
May 11th. Re-fed. The largest larva with a rather 
darker ground-colour than others was sent to Lord 
Walsingham. The 2 remaining larve on twigs; both 
blackish and white. Re-fed again on the 17th, when they 
were on the twigs and unchanged. ‘The smaller larva did 
not seem healthy and had not grown like the other. The 
larger larva, the darkest of all in set IT, was painted on 
May 17th, and is represented in Plate XVIII, fig. 4. 
May 22nd. Re-fed. Two larvie on twigs. The appear- 
ance unchanged, but neither looked healthy. The larger 
larva died on the 25th and the smaller on June Ist. 
F. One light quercifolia larva on lichen-covered sticks 
throughout. 
April 7th. Re-fed. White and pale grey. 
April 10th. Re-fed. On stick. The larva had changed 
its skin, and had become white with markings of two 
