TABLE OF CONTENTS. Vll 



REVIEW OF THE NORTH AMERICAN 

 TRYPETINA. 



PAGE 



Introduction ........... 211 



List of the described species ........ 214 



Description of the species . . . . . . . . 216 



Analytical table of the smaller genera, adopted for the North Ame- 

 rican Trypetse 327 



Distribution of the North American Trypetse among the adopted 



smaller genera 329 



Comparison between the European and the American fauna of Try- 



petina . . 331 



APPENDIX I. 



Critical enumeration of all the North American Trypetina described 



by other Authors . ....... 335 



APPENDIX II. 



Description of the five North American Trypetidce contained in 



"Eugenies Resa, etc.," Zoologi, Part VI ..... 340 



PAGE 



PAGE 



Trypeta aurifera Thorns. . 343 

 genalis Thorns. . 344 



Trypeta liogaster Thorns. 340 

 femoralis Thorns. 342 

 acutangula Thorns. 342 



Index 345 



Explanation of the plates 349 



NOTE FROM THE TRANSLATOR. 



Readers of these "Monographs" may notice discrepancies in some minor 

 points of the terminology used in the first volume from that of the follow- 

 ing ones. A few words of explanation are therefore necessary. The first 

 volume was translated from Mr. Loew's German manuscript into English 

 by a German friend of his (see Vol. I, p. v). The second and third 

 volumes were translated either by me, or under my supervision. Although 

 in all essentials the terminology adopted in Vol. I was followed, some 

 changes, which I thought would be improvements, were introduced. 

 Thus, feet was used for legs ; ovipositor, for borer; crossvein, for transverse 

 vein ; arista, for antennal bristle ; thus transverse shoulder vein came to be 

 humeral crossvein, and hinder transverse vein, posterior crossvein, etc. 

 None of these changes can give rise to any error or uncertainty. — O. S. 



