The following paper comprises all the New-York Insects of the sub-order Hom- 
optera known to me, except some of the minute species, to determine which re- 
quired further researches. The species and genera that are here presented as new, 
are indicated by an asterisk preceding the scientific name, and a brief description 
of these, embracing their essential characters, is added. To the described species 
is appended a reference to the name of the author and the place where the original 
description will be found. 
In the generic arrangement of these insects, Amyot and Serville’s Hist. Nat. des 
Ins. Hemipteres, Paris, 1843, and Westwood’s Synopsis of British Genera, have been 
my chief guides. An acknowledgment is due to the Rev. D. Zeigler, of York, Pa., 
for a copy of Germar’s paper on the genera Clastoptera, &c., in the Zeitschrift f. d. 
Entom.; and to Dr. T. W. Harris, of Harvard University, who has been so kind as to 
place temporarily in my hands his entire collection of Homoptera, including the 
several species named in his Catalogue, and also those magazines and other publi- 
cations which contain all the more important papers of Germar, Spinola and Fallen 
upon this order of insects. I regret that these latter favors were not received in 
season for me to avail myself of them in preparing the following paper, though it 
is not probable they would vary it in any important point from the shape in which 
it is here presented. 
Albany, February 22d, 1851. 
