between lepidopterous lurve and their 
surroundings. 
329 
XIII. 
Bark covered with 
bluish-green lichen, probably 
Physcia pulverulenta. 
| 
| 
= | 
| 
3 betularia, about 12 | 
mm. long, introduced, | 
12 bidentata, about 6} 
‘mm. long, introduced, | 
{ 
| 
mostly changing skin. 
| | 
XIV. 
Bark covered with orange 
lichen, probably Physcia | 
parietina, combined with 
P. pulverulenta. 
Lichen-covered sticks. 
The lichen probably 
Ramalina farinacea, 
(June 25.) 4 betularia, 
about 7 mm. long, intro- 
duced. 1 changing first 
or second skin, others) 
rather larger. 8 bidentata, | 
about 6 mm. long, in- 
| bidentata 
betularia and 10 
introduced. | 
30th similar to those in 
XIII. 
4 
| troduced. | 
| 2 betularia yellowish-| 3 — betularia pale | 3 betularia yellowish- | 
green, 1 brownish-green. | yellowish-green, 1 grey green, 1 dark brownish- 
/10 = bidentata much | mottled with brown. 2, green. Bidentata 
variegated. | much smaller than others. mottled. 
Bidentata rather pale, | 
yariegated. | 
| el | 
Re-fed. 3 and 10} 2 _ yellowish - green| 4 and 10 counted, | 
' counted. betularia still feeding. | Betularia as before. | 
Betularia, all mature. All betularia mature.| 3  betularia mature, | 
9 bidentata much | 
variegated. | 
| 
4 bidentataw on bark, 3) 
on green. All brightly | dark, 
green on sides, 
variegated. 
8 on bark, 1 on green. 
-2seemed unhealthy. All 
much variegated with 
/pale brown and _ green. 
Small white dashes on 
sides. 
| 
| 
| 
| 
| 
| 
7 on bark, 1 on green. | 
Colours as before. Typical 
larve painted, Aug. Ist 
and 3rd, shown in Plate | 
XVI, figs. 6 and 7. | 
| 
8 on bark. 1 unhealthy. 
6 brown, lighter than in 
XII, brightly mottled 
‘with paler brown and 
'green. 1 paler, less varie- 
gated, with little green. 
1 small and pale, without 
‘green. White lateral | 
dashes only on former 6. | 
4 on bark, 3 on green. | 
1 escaped. 10 bidentata 
mottled; some) 
(July 24.) 8 on sticks, 
All brightly variegated | 1 on green, 1 on muslin. | 
with shades of brown, | Nearly all patched with | 
and patched with green. | green. 
| 10onsticks. 6 darkish 
brown mottled with green 
and paler brown: white 
‘dashes on sides. 3 
similar but paler. 
| without green. 
6 on bark, 1 on green. | 
As before. 
7Zonbark. Allchanged| 7 brown, more or less 
skin. 1 blackish-brown, | patched with green, some 
4 darkish brown, 2lighter| very strongly. 1 grey 
brown; all variegated) and brown _ strongly 
1 
| 
| 
| 
with much green, and the | patched with pale green. | 
darker ones also with|2 pale brown with little 
paler brown. All with green. Most show white 
lateral white dashes, lateral dashes. 
