SMALL OR GARDEN SWIFT MOTH. 43 
it of some shade of brown; and the usual dots on the body (as I 
had found them in Mr. Acheson Lyle’s largest specimens) of a pale 
yellowish tint, each of these with a stiff black hair; and the spiracles 
black. Earlier in their lives, the four dots on the back of each 
segment after that next the head are dark. The caterpillars are 
sixteen-footed,—that is, with three pairs of claw-feet on the segments 
next the head, four pairs of sucker-feet beneath the body, and one pair 
beneath the tail. They are somewhat variable in colouring, even to 
being entirely without any tint on the spots. 
The chrysalis is of a somewhat long cylindrical shape, as figured 
at p. 41; shiny and very sensitive; and in colour of some shade from 
ochreous to pale reddish brown, darker on the head and wings; and 
showing the shape of the forming moth and of the legs and wings 
within it very clearly. 
The moth is variable, both in size and colouring; the spread of 
the fore wings may be from an inch to an inch and a half; and the 
colouring may appear wholly of a dirty pale brownish, or, if charac- 
teristic, be of a clay colour or pale brown, ‘‘ with a whitish streak from 
the base towards the inner margin, and an interrupted whitish streak 
from near the inner margin to the apex.” 
The moth appears about the end of May to the middle of June; 
the caterpillar is to be found from the end of September until April, 
and towards the end of April or in May it turns to the chrysalis. 
Whether anything can be done at a paying rate to get rid of the 
srubs does not yet appear. In garden ground, hand-picking might 
answer, for children could be employed at a small cost, and under 
superintendence. ‘Trapping might very likely do good, by arranging 
the baits of pieces of Potato, or Parsnip, or anything the grubs were 
found to prefer to the crop they were ravaging, in the same way as in 
garden trapping of Wireworm,—that is, passing a stick through the 
bait, so as to show where it has been buried a little below the surface, 
and every two or three days raising the bait, clearing the grubs, and 
reburying the piece of Potato, or whatever it may be. 
Where circumstances admit of disturbing infested ground in winter, 
so as to throw the grubs open to cold, or alternating cold and thaw, 
this would get rid of great numbers. 
