228 
Mrs. T. Vernon Wollaston on 
it is very destructive to the foliage of the geraniums ; it feeds 
also upon bramble, French ivy, and many other garden 
plants. The caterpillar is nearly 2 inches in length when 
fully grown and extended, quite smooth, and rather stout; the 
head is small in comparison with its size; each segment (except 
the first and second) has a wedge-shaped velvety black blotch 
on either side, the outer margin of each blotch being bordered 
with a yellow line, which line on the third, fourth, and fifth seg¬ 
ments assumes more the shape of a spot, those on the fifth 
segment being very minute. It varies, however, very much 
in its ground-colour, sometimes being of a very dark brown, 
and at others of a very much paler hue. 
Genus 8. Leucania, Ochsenh. 
Leucania punctosa , Treitschke. 
This very ordinary-looking Leucania (which is found in 
the south of France, Sicily, and perhaps Spain) is rather 
abundant at St. Helena; and it may often be seen, in a 
drowned or partially drowned state, floating upon the sur¬ 
face of the water which has been collected in the little tubs or 
tanks which are so universal throughout the island. The 
majority of my specimens, however, I captured at Plantation, 
flying over the geraniums and other garden plants in the dusk 
of the evening. 
Duponchel, in his 1 Catalogue des Ldpidoptbres d’Europe,’ 
includes under this species ( punctosa ) Boisduvalii , Dup., and 
also pmtrescens , Htibn., which he seems to regard as a mere 
variety. The figure, however, of Boisduvalii in Godart’s 
‘ Papillons de France,’ pi. cv. f. 6, does not altogether corre¬ 
spond with the specimens from St. Helena. The surface of 
Godart’s figure seems to me to be of a much more uniform 
and darker hue throughout; and it shows a postmedian trans¬ 
verse curved row of black dots, which are entirely wanting in 
my types. The figure of Leucania putrescens in the ‘ Ento¬ 
mologist’s Annual ’ for 1862, pi. ii., is quite unlike my St.- 
Helena specimens, though the woodcut of putrescens in New¬ 
man’s 1 Natural History of British Moths ’ is exactly similar 
to L . punclosa. 
Leucania extranea , Gudn. 
Although I did not meet with this Leucania during our resi¬ 
dence at St. Helena, nevertheless, since its occurrence is 
recorded by Mr. Melliss, I think it ought not to be omitted 
from our present catalogue. I cannot, however, but feel it 
open to consideration whether the male of the preceding species 
