54 
HOP. 
not been found to suffer from the first attack of Aphis, and therefore 
not to spread it. The proportion of paraffin used for the dressing was 
one quart, to one bushel of ashes or other dry material with which it 
was mixed.—(See pp. 52, 53 of ‘ Eeport on Injurious Insects,’ by E. 
A. Ormerod. Simpldn & Marshall). 
Long-horned Centipedes. Geophilus longicornis, Leach (? Scolo- 
pendra electrica, Linn.), (? Geo 2 ')liilus suht err emeus of Murray’s Aptera). 
Geophilus longicoenis. 
1, Geophilus longicornis; 2, Litliohius forficatus, “ Thirty-foot ” ; 3, head of 
ditto, magnified. 
There is no doubt as to the great mischief which is caused by the 
various kinds of millepedes, commonly known as Julus Worms or 
False Wireworms, but there are different opinions as to whether the 
long yellow centipedes (figured above at 1, greatly magnified) do harm 
or not. They are often to be found under stems, or pieces of wood, in 
gardens, and are distinguishable at a glance by their ochrey colour, the 
multitude of legs, and their habit of twisting in every direction when 
disturbed. When full-grown they are about two inches long, and the 
kind known as the Long-horned Centipede, which differs little, if at 
all, from the S. electrica, has the power of exuding matter which gives 
a bright light much like that of the glow-worm in colour, but which 
can be freely dropped from the animal. I have seen it as a trace 
or in bright spots on paper in which one of the centipedes had been 
carried. 
In regard to the food of these centipedes, Mr. A. Murray con¬ 
sidered them to be only animal feeders. John Curtis mentions them 
as being animal feeders, but also that he had found them amongst 
Potatoes ; and, further, that they subsist partly on succulent roots, 
ripe fruit, and decaying vegetable matter, only coming out at night, 
apparently in search of food (see Curtis’s ‘Farm Insects.”). Dr. E. 
L. Taschenberg notes that they are to be found “at the roots and 
