78 
ORCHARD INSECTS. 
above, yellow-green below ; one yellow stripe (interrupted at distances) 
runs along the back, and one yellow stripe along each side; the body 
of the caterpillar is spotted with black, and so are the claw-feet; the 
four pairs of sucker-feet beneath the body have two black spots on 
each. The caterpillar takes its name from the head having often a 
bluish tint. It goes into cocoon spun up with bits of bark, or anything 
apparently that may be conveniently at hand, and attached to twigs, 
or stems, or neighbouring walls, or similar positions. 
Diloba czeruleocephala. 
Figure of 8 Moth, and (“blue-head”) caterpillar. 
The moth may be found from September onwards in the latter part 
of the year ; and on November 18tli Mr. C. D. Wise reported to me 
from Toddington :—“We have found and are now catching, by means 
of the lamps, the Figure of 8 Moth.” 
As I was aware that Mr. T. W. Beach, of the firm of Messrs. 
Beach & Sons, of the Steam Fruit Preserving Works, Brentford, took 
much personal interest in arrangement of lamps adapted for attracting 
and capturing night-flying moths, I enquired of him whether it was 
his plan that was used as above, and received from him the following 
note:—“Replying to your letter respecting the lamps used at Tod¬ 
dington, I must inform you the arrangement they had previously to 
my idea was by placing a lighted lamp under an open shed, the 
underneath part of the roof or boards being tarred and greased.” 
The plan suggested by Mr. Beach, consequently on observation of 
the numbers of male Winter Moths which had been seen flying round 
the public lamps in the neighbourhood of Evesham, was that a trap 
could be arranged in the form of a shade fixed over the light, and the 
lower surface of the projecting shade coated with a greasy composition 
similar to that which is placed round the stems of the trees, and, by 
the moths flying upwards to the light, it was likely that their wings 
would become attached to the grease, and they would be captured. 
Whether on general principles it would be desirable to have lights 
about at night where they might be tampered with by vagrants or 
mischievous people, seems to me open to doubt; but as we certainly 
want to get rid of the moth-pests, and the plan of lights and smearing 
together was found to act for this purpose, I just allude to it. 
