The following paper comprises all the New York Insects of the sub-order Homoptera known 

 to me, except some of the minute species, to determine which required further researches. 

 The species and genera that are here presented as new, are indicated by an asterisk preceding 

 the scientifle 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. Hemip 

 teres, 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 publications which contain all the more important papers of Gfermar, 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. 



