Explanations of Abbreviations and 

 Acknowledgments. 







A E S American Entomological Society : Philadelphia. This means that 

 New Jersey specimens are in the society collection, usually with a State 

 label only. The society now possesses, among others, the collections of 

 the late Dr. George H. Horn and of the late Messrs. Wilt & Martindale. 

 The collection of Mr. E. T. Cresson is also stored in its rooms, and there 

 is considerable material from older sources, including quite a number of 

 types. I have looked carefully over the collections in Hymenoptera, and 

 Dr. Calvert cites those in the Odonata in several instances. 



Ang. Angelman, John B., Newark. Collects macro-lepidoptera, and has 

 furnished some of the records credited to the Newark society. Mr. 



kAngelman's collections have been largely made within a few miles of 

 Newark, ranging from the salt meadows to the Orange Mountains : a 

 large portion of his material in the moths has been determined by 

 myself, while much of the balance has been compared with authorita- 

 tively determined collections, 

 shm. or Ash. Ashmead, William H., Washington, D. C. ; Assistant 

 Curator of insects in the United States National Museum. Mr. Ashmead 

 is our leading authority in the Hymenoptera, and the list in that order 

 has been compiled by him from data furnished by collectors and con- 

 tributors generally, from material in his own collection and from the 

 collections in the United States National Museum. All my own species, 

 except in the Aculeates, have been determined by Mr. Ashmead, as have 

 also the species collected by some others. 



Furthermore, Mr. Ashmead has determined many of the Hemiptera- 

 Heteroptera, not only for me but for others that have collected in New 

 Jersey. The list, therefore, owes him much in two orders. 

 Banks, Nathan, Falls Church, Virginia ; Assistant in the Division of Ento- 

 mology, U. S. Department of Agriculture. Is a specialist in the neurop- 

 terous orders and has named or determined not only all my material 

 but that of other collectors who sent him their New Jersey specimens. I 

 have used Mr. Banks' Catalogue of Neuroptera as a guide in this list ; 

 but have given the divisions ordinal rather than family rank. 

 Beyer, G., New York City. Coleopterist, and has sent me records chiefly 



from the northern section of the State. 

 Bf. Bischoff, E. A., Newark. Mr. Bischoff is an enthusiastic collector of 

 Coleoptera, and his records are numerous and usually accurate. His col- 

 lecting grounds are chiefly the environs of Newark ; but this embraces 

 territory like the marshy districts lying east and south, and the hilly 

 country lying west and north along the first ridge of the Orange Moun- 



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