THE CANADIAN ENTOMOLOGIST. 147 



supposed families have been disposed of the following pages will 

 show." 



Mr. Fox then proceeds with his classification of the Fossores 

 tvithout^ however, giving a table for recognizing these families or even 

 mentioning the salient characters that would distinguish them. He has 

 not even given a single character for distinguishing this so-called family, 

 Sphegidcie, but begins by saying : " I would divide this vast family into 

 five subfamilies as follows : Spheginse, Pemphredoninae, Bembicinse, 

 Oxybelin?e, and Crabroninse." 



Fox then goes on and separates these five subfamilies into tribes : 

 The Spheginse he separates into two tribes, Sphegini and Ampulicini, 

 upon most superficial and totally unreliable characters when the exotic 

 forms are considered ; the Pemphredoninse into two tribes, Psenini and 

 Pemphredonini ; the Bembicinae, a most conglomerate mixture, into 

 thirteen tribes, Philanthini, Mellinini, Nyssonini, Stizini, Bembicini, 

 Neolarrini, Bothynostethini, Astatini, Diploplectrini, Miscophini. Larrini, 

 and Trypoxylonini ; while the Crabroninse and Oxybelinre are without 

 tribes. 



The Oxybelinse were first separated from the Crabronidse in 1874 by 

 the Swedish entomoligist, C. G. Thompson. I believe they represent a 

 distinct family and have so treated them in my work. 



In 1896, Dr. Franz Kohl, who had, however, years before published 

 much on these wasps, published his " Die Gattungen der Sphegiden," a 

 most valuable work, in which he treats these wasps as belonging to a 

 single large family, the Sphegidpe, which he divides into generic 

 groups, allied groups, subgenera and species groups. 



The work is a masterpiece and should be in the hands of all students 

 of these wasps. 



Dr. Kohl recognized nine generic groups, arranged in the following 

 sequence : 



