CHEIMATOBIA BOREATA. 161 
IT was much struck with when I reared a small brood 
from eggs in 1868. (William Buckler, June, 1881; 
Note Book IV, 11.) 
OPORABIA DILUTATA. 
Plate CXXVI, fig. 4. 
On the 7th of May, 1881, I received from Rev. John 
Hellins nine larve of this species, feeding on elm, 
hawthorn, and other trees, all in their last coats and 
nearly mature, two of them entering the earth next 
day. 
The larva is seven-eighths of an inch in length, 
about an inch when full-grown; it is stout in propor- 
tion, almost uniform in substance throughout; the 
head is rounded, and fittmeg partly within the second 
segment; the body above appears very cylindrical, 
though viewed sideways it tapers a little from the 
head to the fourth segment in the muscular base of 
each anterior leg increasing progressively, and also 
tapering a little from the eleventh segment to the 
thirteenth ; the segments are moderately well defined 
on the back, rather more deeply cut and more plump 
on the belly; the ventral and anal legs well developed. 
In colour the head is of a lightish green, smooth, 
and but slightly glistening; the colour of the back as 
far as the spiracular region is a more or less bright 
velvety green, becoming yellowish-green near each 
segmental division, the fold itself yellowish ; the sub- 
dorsal region bears two equidistaut, pale, rather sinuous 
fine lines, but little broken, either whitish or yellowish, 
but extremely faint; the tubercular dots are whitish 
or yellowish-greenish, and conspicuous when they are 
surrounded with deep rose-pink or crimson; the 
anterior pair of the trapezoidals are often within 
markings of one of those colours about the middle of 
the back of each segment, where relatively a blotch of 
the same kind of red appears between the lowest of 
VOL. VII. 12 
