30 Second Report on Economic Zoology. 
“ big-bud ” on them. No bushes are grown more than three years, 
only the stools are kept for the cuttings, of course being cut back 
every year. 
Mr. E. J. Wheler, of Alnwick, Commissioner of His Grace the 
Duke of Northumberland, tells me he has no “ big-bud ” in his 
garden, and states that he had little doubt that clean stock could be 
got in the neighbourhood if desired. 
Mr. A. T. Gillanders, of the same district, writes : “ I have not 
seen a single specimen on black currant during the five years I have 
been here. Further enquiry has shown Northumberland to be 
practically free. Mr. Wheler writes me later that the Duke of 
Northumberland’s forester assures him that Northumberland is 
practically clear of the mite. 
Information obtained in Ireland has shown the “ big-bud ” to be 
comparatively scarce, particularly in Armagh and co. Down. I have 
seen little in Devon or Hampshire. Further enquiries have ceased 
pro tern., owing to the Eoyal Agricultural Societies’ zoologist, 
Mr. Cecil Warburton, reporting on this subject after touring in parts 
of Great Britain. 
A Red Spider ( Tenuipcdpus ) on Fruit Trees. 
Numerous enquiries have been sent concerning a Bed Spider 
which is very abundant on fruit trees. The round globular eggs are 
very noticeable in winter and spring in the axils of the buds and 
twigs. The eggs hatched out in March and April, and specimens 
were sent at once to Mr. Albert Michael for identification. 
The specimens were identified by Mr. Albert Michael as species 
of the genus Tenuipalpus — probably T. glaber of Donnadieu — but 
it is not possible to be certain of the species from immature speci- 
mens. 
This species can easily be hatched out from the round bright red 
eggs which thickly encrust the smaller stems of fruit trees. I have 
failed to trace any damage caused by these acari, even when they 
have swarmed over the trees. They reach the mature state in April 
and then disperse. From a series of observations I am sure they 
feed upon the spores of various fungi and lichens growing on the 
fruit trees. 
The Wood Leopard Moth. 
The Wood Leopard “Borer” is the larva of the Wood Leopard 
Moth ( Zeuzera sesculi). It has been sent from Eynsford and Goud- 
