REPORT OF THE STATE ENTOMOLOGIST 1904 499 



death of the plant or any considerable portion of it. The drain, 

 however, if the insects are plentiful is constant for pretty much 

 the entire season and there can be no question that a large part of 

 the growth is devoted to the nutrition of these insects. 



In the following list we have endeavored to include all the species 

 known to occur in the State with notes on their abundance, food 

 plants, distribution, life history, and habits; in short, the essential 

 facts related to their effect on different crops and furnishing the 

 basis for further detailed study of such species as may seem to 

 demand more thorough investigation. 



I am under special obligation to Dr E. P. Felt for the oppor- 

 tunity to study these insects in various parts of the State and get 

 together the material for this paper and for his interest in its pub- 

 lication. Mr Van Duzee has furnished me with numerous records 

 and specimens and given me free access to his collection. Professor 

 Comstock placed the Cornell collections at my disposal. The 

 authorities of the American Museum afforded me free opportimity 

 to examine collections there. Prof. C. B. Davenport placed the 

 facilities of the Cold Spring Harbor laboratory at my disposal and 

 Mr J. R. De la Torre Bueno has furnished me with many speci- 

 mens from the vicinity of New York. 



I was particularly glad to be able to collect at Salem, the locality 

 where Dr Fitch lived and did much of his entomological work. 

 The collections there brought to light include a large proportion 

 of species which he had described and these have been of particular 

 value and interest as a basis of recognition for his species and for 

 comparison of specimens from other localities. 



Of the New York species of Jassidae 12 were described by Say 

 all of which are satisfactorily referred. 30 were described by 

 Fitch and 28 definitely placed by types or descriptions. Eight 

 have been described by Uhler, 28 were described by Van Duzee, 

 others by Osbom and Ball, Fallen, Gillette, Linnaeus, Fabricius, 

 Provancher and others. There are very few that may now be 

 considered in question. 



All the species in this group known to Dr Fitch comprised 45. 

 Van Duzee 's list of Buffalo Hemiptera includes 93 species. The 

 number brought into the present list all of which are based on 

 authentic records or specimens in hand is about 175. Doubtless 

 there are some species to be added — that are known for New Jersey 

 or Maryland, Maine and Canada but I believe it safe to say that 

 the list presents a fairly complete presentation of the Jassidae of 

 the State. 



