690 
ANNUAL REPORT OF NEW-YORK 
of vegetation under wliich they are arranged. Our knowledge 
of this branch of our Natural History is still limited and imper¬ 
fect. How many of these pests are still lurking unobserved and 
unknown to us, we know not, but that the number is considera¬ 
ble there is no doubt. Correspondents are frequently address¬ 
ing me with inquiries respecting species of which they are una¬ 
ble to find any account, as yet, in these Reports; and when 
such communications are accompanied with specimens which I 
am able to identify, I not unfrequently find the insect to be one 
which, if known at all, has not hitherto been known as inimical. 
Though but part of a year has elapsed since my last Report was 
completed, more than one species in addition to those therein 
noticed, occasioning serious losses to nurserymen and fruit grow¬ 
ers in some sections of our country, has already come to my 
knowledge. And such numbers of these depredators still re¬ 
main undiscovered, that the day must be regarded as yet distant 
before our acquaintance with this subject can approximate com¬ 
pletion. 
Respectfully submitted, 
July 21, 1858. 
ASA FITCH. 
