PREFACE. 



The purpose of this list is to stimulate an interest in the 

 collection and study of insects in the state, as has been done 

 in New Jersey, and to serve as a check-catalogue of the 

 species in the collections of the institutions and amateur col- 

 lectors. A work entitled " Guide to the Insects of Connecti- 

 cut," containing keys to orders, families, genera, and species, 

 and including much information about life-histories, habits, 

 distribution, etc., is already in progress; two papers, the Eu- 

 plexoptera and Orthoptera, by B. H. Walden, and the Hy- 

 menoptera, by Henry L. Viereck, having already been 

 published as Bulletins 16 and 22 of this Survey. It will be 

 many years at least before the Guide can be finished so as 

 to include all orders of insects, and the usefulness of a check- 

 list for service during this time seemed to warrant its prepara- 

 tion and publication. 



Only such species are included as are known to occur 

 within the boundaries of the state, and are represented by 

 specimens or reliable records. The list is based on the ma- 

 terial in the collection of the Agricultural Experiment Station 

 at New Haven, which has been accumulated during the past 

 twenty years, and is now by far the most important collection 

 of Connecticut insects in existence. Many records have been 

 obtained from the collections of various institutions both in 

 and outside of the state, and from many private collectors. 

 No localities are mentioned in the list, but these will be given 

 in the Guide. Where possible, one or more references are 

 given for each species. These are not references to the origi- 

 nal descriptions except in a few cases, but are usually 

 references to the most accessible accounts, sometimes popular 

 and sometimes scientific, containing descriptions, figures, or 

 studies of life-histories and injuries that will aid one in recog- 

 nizing the species. Only the well-known common names and 



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