240 THE CANADIAN ENTOMOLOGIST. 



the ground and on logs where there had been a bush fire a few weeks 

 previous. 



Anthrax morio Linn. — Det. Johnson. Common along paths and 

 roads. Those taken vary from 4^ mm. to 9 mm. in length. 



Anthrax lepidota O. S. 



Family Therevid.e. 

 Thereva frontalis Say. — Det. Johnson. 

 Thereva nigra Say. — Det. Johnson. 



Family Asilid^. 



Dasyllis grossa Fabr. 



Dasyllis socratos Walker. 



Dasyllis posticata Say. — Det. Johnson. 



Dasyllis flavicollis Say. — Det. Johnson. 



Laphria sericea Say. — Det. Johnson. 



Laphria aiatus Walker. — Det. Johnson. 



Laphria sp. — Much like the preceding, but with a golden and black 

 matrix. 



Laphria piibescens Willist. — Det. Johnson. 



Laphria canis Willist. — I found Dasyllis and Laphria much more 

 abundant than they are about Buffalo. 



Family Dolichopid.^. 



Psilopodinus patibulatns Say. — Det. Johnson. 



Psilopodinus scobinator Loew. — Det. Aldrich. This species was very 

 abundant along the sunny edges of woods. There were great numbers of 

 individuals of this family near the marshy borders of the streams, and I 

 now regret that I was not more thorough in collecting them. 



Chrysotus obliqmis Loew. — Det. Aldrich. These were also abundant 

 in sunny places. 



Chrysotics affinis Loew. 



Chrysotus chloricus Wheeler. 



Chrysotus discolor Loew. 



Argyra albicans Loew. — Det. Aldrich. 



Neurigonia spp. — I sent two species belonging to this genus to Prof. 

 Aldrich, and he reports that both are still undescribed. 



A^eurigonia rubella Loew. — One female seems to belong to this species. 



Medeterus sp. — One female belonging to this genus I have not yet 

 been able to determine. 



