110 
THE ENTOMOLOGIST’S WEEKLY INTELLIGENCER. 
mining in birch leaves, which he had 
received from Scarborough. The mine 
began at the tip of the leaf, became 
gradually broader till it swelled out into 
a blotch in the centre^ of the leaf, where 
the larva cuts out a round case formed 
of the two skins of the leaf. 
Mr. Stainton said he would not ex- 
press an opinion as to the order to which 
the insect belonged ; he had brought it 
for exhibition, in the hopes of getting 
some information concerning it ; pos- 
sibly, if Professor Westwood were to 
take some specimens to Oxford, and 
expose them there to a strong current 
of philosophy, the order to which they 
belonged might be eliminated. 
Professor Westwood remarked that he 
should be very glad to investigate the 
specimens at his leisure at Oxford, but 
he was desirous of knowing what was the 
structure of the mouth of the larvte ex- 
hibited, and he should be glad to know 
Mr. Stainlon’s opinion on the larvae, as 
that gentleman must surely have formed 
an opinion as to the order to which they 
belonged. 
Mr. Stainton replied that he did not 
wish to express any opinion on the 
larvae; he had brought them mainly 
with the view of obtaining information. 
Mr. M‘Lachlan enquired whether Mr. 
Stainton was not of opinion that these 
birch miners were nearly related to the 
genus Antispila. 
Mr. Stainton observed that were he to 
express such an opinion he would be 
indicating the order to which he con- 
ceived the insect to belong, and he was 
desirous of leaving this question per- 
fectly open; but he might remark that 
the mine of these insects more nearly 
resembled the mine of Tinea bistrigella 
than any other mine he knew. 
Dr. Wallace regretted that so much 
stress was laid on habit and so little on 
structure; he had heard a great deal 
about the mine of this insect, but nothing 
about its structure. 
The discussion on the subject then ter- 
minated, but we believe that eventually 
Professor Westwood took the insects in 
his pocket to Oxford. 
A FEW WORDS RESPECTING 
CEMIOSTOMA COFFEELLA ; 
AN INSECT INJURIOUS TO THE COFFEE 
PLANTATIONS OF THE WEST INDIES. 
In 1842 M. Guerin-Meneville published 
a ‘ Memoire sur un Insecte et un Cham- 
pignon qui ravagent les Cafiers aux 
Antilles.’ This ‘Memoire’ is now very 
scarce, and the subject noticed in it is 
likely to be overlooked, though we enter- 
tain no doubt if a Micro-Lepidoplerist 
were to visit the West India islands he 
would find this Cemiostoma Coffeella a 
most conspicuous object. The insect in 
Guadaloupe is so plentiful that the brown 
blotebes formed by the larvae in the 
leaves of the coffee plant exhaust the 
vital energy of the leaves, and many 
of the plants are thereby killed, and 
whole plantations presented a “ triste 
aspect” when M. Perrottet examined 
them. 
In the neighbourhood of London it is 
not uncommon to see hawthorn hedges, 
in August, completely browned by the 
blotches formed in the leaves by the 
larvae of Cemiostoma scitella, and it 
would appear that C. Coffeella abounds 
in a similar way amongst the coffee plan- 
tations of Guadaloupe. It seems that 
C. Coffeella forms, in the leaves of the 
coffee plant, large brown blotches of 
irregular form, — thus very similar to 
