40 
Notes of observations 
The insects named on the list are selected, as far as possible, as 
being the most injurious of the genus; but in one or two cases a 
species which is not widely distributed has been taken that we might 
have the advantage of an illustration showing a type of the genus. 
For these excellent illustrations we- are, as before, indebted to the 
kindness of Dr. Masters, in allowing us the use of electros from the 
blocks belonging to the ‘ Gardener’s Chronicle,’ taken from the 
drawings of Prof. Westwood and the late Mr. John Curtis. 
1. Plusia Gramma. Silver Y Moth. About an inch and a half 
across the wings when spread; the head and body purplish brown 
the former with the plumage raised so as to form a crest; the upper 
wings silky, and mottled with various shades of pinkish and brown, 
with a pale yellow or whitish mark on each wing, like the Greek y) 
the lower wings smoky. The caterpillar, when full grown, is about 
an inch and a quarter long, green, with six white or bluish lines down 
the back, and a yellow line along each side. It spins the cocoon in 
which it changes on some part of a plant. 
4. Agriotes lineatus. The Striped Click Beetle, or Wireworm 
Beetle. This may be known from the (also very common) Agriotes 
obscurus by having the wing-cases striped with alternately dark and 
light lines of brown, and rust or asli-colour. In A. obscurus the wing- 
cases are reddish brown or dusty black. The Click Beetles may be 
recognised by their shape, as given in fig. 4 ; also by their power of 
regaining their right position when laid on the back by giving a 
sudden spring accompanied by a loud click; and the true Wirewonns 
are larvae of these Beetles, but from their likeness to other “pests” 
some confusion exists very often on this subject. The true Wireworms 
are yellow or orange, almost cylindrical, shiny, and so hard that it is 
difficult to crush them, and altogether are remarkably like a piece of 
yellow wire. They are distinguishable from Centipedes and Millepedes 
by having only six legs placed in pairs on the three segments 
immediately behind the head, and have also one sucker leg at the tail. 
From the Crane Fly grub, which bears the name of Wireworm very 
generally in Scotland, they are distinguishable by having legs; the 
Crane Fly grub has none. 
10. Aphis rumicis. Collier; Black Dolphin ; Black Fly (Scottice). 
The well-known black Aphis of the Beans, commonly named from its 
sooty colour. The males with four wings, slightly tinged with brown, 
and with brown nerves; the females wingless, with oclireous legs. 
13. Agrotis segetum. Turnip Moth, or Common Dart Moth. This 
is from an inch and three-quarters to two inches in the spread of the 
wings, and very variable in colour; the fore wings are freckled with 
