Insects. 9263 
Brummen, where I was going to spend a few days with Dr. Ontijd. 
During my stay I searched more than once, principally in the 
evening after sunset, on the hawthorn hedges, which are so plentiful 
at that place, but the only result was that I met with a single 
example on the 31st of July, in that year, at Rhienderstein. 
Thus I have only had an opportunity of watching two larve of this 
species, but as, fortunately, both spun up, pupized and emerged, and 
as one turned out to be a male and the other a female, I may consider 
that I am sufficiently acquainted with the life-history of this species 
to include it in these papers. 
I was subsequently assured by Dr. Wttewaall that my idea as to 
the nature of the food of the larva was to be attributed to some mis- 
understanding on the part of one of us, and that the first larva which 
I had seen preserved in spirit was found on the hawthorn (Crategus 
oxyacantha), as were the other two. ‘The larve are very pretty and 
beautifully marked creatures. Their colour is bluish white, with some- 
what reddish heads. They usually remain curled up, as in fig. 1 of 
our plate 1, and when they move about or feed, they still almost always 
keep the last segment of the body curled round underneath. The 
head was globose, the eyes small, circular, black and seated in round 
black spots low down on each side of the head. The feelers were also 
black and extremely minute. A longitudinal suture was distinctly 
observable on the vertex and two transverse impressions. The body 
was bluish white, except at the sides, where a yellowish tint was per- 
ceptible. Along the back was a broad bluish white line, on which 
were first four large elliptical spots, and then alternately after every 
other one a larger and a smaller round spot, as shown in fig. 4, some- 
what enlarged. On either side of this dorsal line is a line composed 
of small transverse black and orange spots, as represented at figs. 3 
and 4, enlarged. On each segment the markings are as follows:— 
Jirst, a little wedge-shaped black line, close against it an orange spot, 
broadest at the end directed towards the dorsum; succeeding this are 
one or two longer black lines, then a smaller one, and, lastly, three of 
nearly equal size, all black. The last segment has three black spots 
in the centre, and on either side one orange and three black lines. 
The stigmata were shaped like the impression of a stag’s hoof (see 
fig. 5, much enlarged). Above the stigmata were clearly to be seen 
round black valves, as if belonging to excretory ducts, as is usually 
the case with Cimbex larve. I have, however, never seen these larve 
eject any fluid (see on this point the description of the larva of Abia 
_ nea, vol. i. p. 144; Zool. 7524), but the one taken at Rhienderstein 
