20 First Report on Economic Zoology. 
Tlie most destructive species appears to be If. ruficornis, which 
is winged, and which evidently migrates in large numbers. 
These beetles will feed on other substances, such as live worms, 
cooked and uncooked meat, etc. Harpalus ruficornis and others 
have been recorded before in Norfolk, namely at Walsingham. 
Treatment. 
The only successful plan is that adopted by Messrs. Laxton 
Bros., namely, to sink small pudding basins in the soil between the 
plants every few yards and baiting them with “ lights ” and sugar- 
water ; the beetles swarm to this and are unable to crawl back up 
the sides of the basins ; similar good results have been gained by 
using ordinary jam pots or glass jars. Probably poisoned baits 
would act well, but trapping as given above is a well tried and most 
successful plan. 
Slug-worms on Fruit Trees and Hedgerows. 
( Eriocampct limacina, Cameron.) 
The larvae of the Pear and Cherry Sawfly ( Eriocampa limacina ) 
have been received by the Board of Agriculture from Enfield. They 
were reported by the correspondent as doing damage to fruit-trees and 
to the hedgerows. They are frequently very destructive to pear, 
cherry, and other leaves ( vide p. 72). 
Another correspondent from Willingham reports them in September 
as damaging the leaves of cherry trees there. 
The life-history, etc., of this pest is dealt with in the revised 
leaflet No. G2. It has not been nearly so abundant as in past 
seasons. 
Maggots in Apples. 
A correspondent from Uttoxeter forwarded to the Board an apple 
that had been damaged by the Codling Maggot (Carpoccipsa pomonclla, 
Linn.). This pest is dealt with in Leaflet 30. 
The correspondent refers to the damage to the apples being clue to 
weevils : “ We are suffering in our trees from the effects of a weevil 
that has spoiled and lost us most of the fruit.” 
Two weevils have been recorded attacking apples, namely, the 
Purple Apple Weevil ( Rhynchites bacclius, Linn.) and the Copper 
Coloured Weevil (If cuprous , Linn.). 
Apples also suffer from another grub which has been very preva- 
lent this year, the Apple Sawfly (Hoplocampa tcstudinca , Klug.). 
