188 rjanuary, 
first made the journey from Edinburgh to Epping,* arrived on the 
16th May safely at Meseritz. The indications of " frass " showed that 
a few had partaken of food on the way. On the fresh food, which I 
secured on the very day of their arrival, no trace of " frass " could be\ 
observed, and yet one of them could not have been quite full grown, 
as it only became a pupa on the 29th May. Can it have disliked the 
Selianthemum grown on a sandy loam, and not on limestone ? 
The first turned to pupa the afternoon following its arrival ; it did 
not fix itself by a thread, neither did the following ones ; but the fourth 
fixed itself in a corner of the box with a weak thread round the middle 
of the body. So it sat quite still, having become of an unicolourous 
pale green, with apparently very deep-lying dorsal vessel. Each of the 
four pupae had the hinder extremity inserted in the cast-off larva-skin, 
which had become pale greyish-yellow, with yellowish bristles. 
The caterpillars are pale green, and amply covered with whitish 
bristles. The dorsal vessel forms a considerably broad longitudinal 
line, dark green, narrowed in the segments, fading away before the 
end of the anal shield ; which line is laterally accompanied on each \ 
segment by a swollen hump, apparently more thickly bristled. The 
lateral swelling, deeply notched behind each segment, has a reddish- 
white line, running lengthways, bordered on both sides with dark rose 
colour, making the colour of the whole lateral swelling appear rose 
colour when superficially viewed. This colour does not reach round 
the anal shield, nor does it extend to the thoracic segments. Between 
it and the dorsal swellings pale faint lines descend from above obliquely 
downwards and backwards. The ventral legs are somewhat paler than 
the ground colour of the body ; the anterior legs are yellowish-brown, 
their tips quite pale. The pupa is slightly polished pale green, on the 
back darker and purer ; on the abdomen paler, and shading into 
yellowish, on the wing-covers into whitish. The abdomen shows very- 
slender small yellowish bristles sparsely scattered ; on the face they 
are somewhat longer, straight, and stiff; on the neck shorter, and] 
much sparser. Over each eye a blackish streak, curved backwards, . 
ranges from the upper border to the lower one. The dorsal vessel, 
only visible on the abdomen, is dark grey, widened on each segment in 
the middle, but it is not visible either on the first or last segment. The 
lateral swelling of the abdomen, which disappears under the wing- 
cases, is very pale rose colour. Above it the spiracles appear as small 
whitish raised dots. 
