(A) 



CATALOGUE OF THE KNOWN HOMOPTERA OF THE 

 STATE OF NEW YORK IN 1851. 



The following paper by Dr. Asa Fitch, was published in the Fourth 

 Annual Re^jort of the Regents of the University of the State of N'ew 

 York on the State Cabinet of Natural History, 1851. Its scope is 

 stated in the note by the author that precedes it. From the large 

 number of original descriptions that it contains, viz., of eighty species 

 and six genera, it has been a desideratum to many students working 

 in this suborder, which, from the report having long been out of print, 

 could only be supplied through the labor of transcription. 



In this reprint, it is designed to reproduce the paper in its original 

 form, litteratum et punctuatum, with the exception of the introduction 

 in the text of the small reference figures, indicating corrections in the 

 names, or notes thereon given in supplementary pages. The paging of 

 the Fourth Report is retained in the catalogue, in brackets. 



In compliance with request, Mr. E. P. Van Duzee, of the Grosvenor 

 Library, Buffalo, N. Y., has kindly made revision of the nomen- 

 clature of the Catalogue as far as the Psyllidae, and indicated such 

 changes therein as are accepted at the present time. The remainder of 

 the catalogue, comprising the Psyllidse, Aphididre, and Coccidae, has 

 been revised and annotated by Dr. C. V. Riley. The names in the 

 catalogue unaccompanied with the reference figures are unchanged. 



The case of Homoptera, arranged by Dr. Fitch, to accompany and 

 illustrate the catalogue — each specimen indicated by name and 

 number cut from the catalogue — • was placed in the collections of the 

 New York State Cabinet of Natural History in 1850. During ensuing 

 years it became infested with Anthrenus and other museum pests, and 

 a number of the specimens were destroyed. In 1879, those that had 

 escaped destruction were removed and arranged with the original labels 

 in a new case, which has since been in charge of the State Entomologist 

 in his ofllice in the capitol. A slip attached to the case states that it con- 

 tains the TYPES of fifty-four species and five subspecies described in the 

 catalogue. The Psyllidae were all destroyed ; of some of the Aphididse 

 portions are remaining. In the other families, the structural features 

 remain for comparison, but the colors have become so seriously 

 impaired that they would be almost valueless for study. 



