Insects, etc., Injurious to the Pear. 



331 



my garden at Wye, and quite destroyed the foliage of two young 



Cox's Orange Pippins. The attack seems to be well known to 



gardeners in many parts of the country, but does not seem to affect 



plantations to any great extent. 



Stainton (2) says : " In the neighbourhood of London it is 



excessively abundant, and from the profusion of the mines of the 



larva?, the hawthorn hedges will in August assume quite a brownish 



tinge." It is also mentioned by Curtis (3) and byAVestwood (4) and 



earlier by Knight (Horti- ________^^_ 



cultural Transactions), 



whose trees were so injured 



that he at one time resolved 



to remove them. In 1775 



Goeze (5) gave a descrip- 

 tion of what is evidently 



this species mining the 



leaves of apple and pear 



trees in Germany. 



It is also recorded from 



Xorthumberland, Durham, 



Lancashire, Yorkshire, 



Cheshire, Warwickshire, 



Norfolk, Suffolk, Essex, 



Hereford, Gloucester, 



Dorset and Wilts (1). 

 In a copy of the Cottage 



Gardener for May 1849 (6), 



I find a reference to an 

 insect that is evidently 



C. scitclla. " Every gar- 

 dener/' it says, " must have 

 observed the leaves of his 

 pear trees, especially those 

 of the Chaumontelle, 



blotched with dark brown spots in the autumn. We had a standard 

 tree of this variety that annually was thus injured, whilst a Swan's 

 Egg and Easter Bergamot close by were comparatively untouched. 

 The brown blotches were caused by the caterpillars of a very small 

 moth called the Pear Tree Blister Moth (Tinea clercTcella)." The 

 figure is that of C. scitclla, but the colour is given on the fore wings 

 as being orange with a silvery spot on the outer edge and a mingling 

 of black, lilac and purple on the inner angle ; an orange feathery 



[F. Edenden. 

 FIG. 217. APPLE LEAF BLISTERED BY THE LARV.F. 



OF Cemiostoma scitella. 



