3 2 First Report on Economic Zoology. 
are also attacked by mites. Numerous birds, of course, prey upon 
them. 
The Destruction of Subterranean Insects and 
other Ground Garden Pests. 
A box containing the following creatures was sent by a corres- 
pondent of the Board of Agriculture from Glasgow, with a request 
for information as to how to clear them out of his garden. 
i. Wire-worm — The larval stage of the click beetles ( ElcUeridce ). 
These are hard, shiny and bright yellow. 
ii. Julidae, including : 
a. Two species of Julies. 
b. A species of Polydesmus. 
iii. S colopcndridce, including GeopMlus longicornis. 
The wire- worms are, of course, very injurious, and so also are the 
Julidce. A small white Julus sent was an immature form, but a 
different species to the large dark snake millepede {Julus terrestris, 
Linn.). 
The Polydesmus can easily be told by the sides of the body being 
notched and by its more or less flattened form. It was too damaged 
to identify, but was probably Polydesmus complanatus, Linn. It is 
also injurious to plant life. ' Geopliilus longicornis, the long snake-like 
yellow species with one pair of legs to each segment, is a centipede 
and is beneficial, probably feeding upon the young Julida?. The 
pests may be destroyed in the following way : — 
Treatment. 
Peat moss manure is always attractive to Myriapoda and other 
pests and should be avoided. Lime if applied in proper quantity 
always seems to check the increase of millepedes, but has no effect 
on the wire-worm. Both wireworms and millepedes are prominent 
garden pests and can only be treated in two ways, viz : 
(i) By fumigation. 
(ii) By trapping. 
(i) Fumigation for subterranean insects and other animal pests 
is best carried out by using bisulphide of carbon. Proceed as follows : 
Make a small hole in the flower bed or border every two yards and 
pour in J oz. of the bisulphide of carbon and close up each hole as 
soon as the carbon is poured in. This must be done so that the 
bisulphide of carbon does not touch the roots of a plant, that is, it 
