100 THE CANADIAN ENTOMOLOGIST. 



The specimen above mentioned has the eyes distinctly separated, and 

 would hence fall into M. Sackeni. But the wings are not more distinctly 

 marked than in M. cimbiciformis, the marginal cell is distinctly open, and 

 the last segment of the abdomen is covered with long erect yellow pile, 

 while in Sackeni the abdomen is entirely black pilose. These points 

 together would seem to make it distinct from that species, although the 

 very strong character of the eyes being separated vvould make it that. It 

 differs from all the forms of M. cimbiciformis in the above-mentioned 

 pilosity of the abdomen, and in the separation of the eyes. I have con- 

 sulted almost a dozen different descriptions of J/, citnbiciformis, which it 

 is more than probable represent all of the different variations, and 

 invariably the abdomen is described as entirely black pilose, except the 

 first ses:ment. There is a further difference in the form of the face below. 

 After thus stating the case, and exercising all the care that should be 

 exercised in erecting a new species in a genus where the synonymy is 

 already immensely complex, I feel justified in describing the specimen as 

 new. 



Mallota facialis, n. sp. 



Male. — Antennae obscurely reddish; shining except the third joint, 

 arista yellow. Wide facial stripe and cheeks shining. Face white pubes- 

 cent and pilose, strongly projecting below, so that a line from the tip of 

 the tubercle to the tip of the epistoma would have a distinct outward 

 slant ; the epistoma projects distinctly further than the antennge [the out- 

 line of the face is quite different in the other species of this genus]. 

 Eyes bare, very narrowly separated. Pile of thorax and scutellum bright 

 yellow. Thorax black, scutellum translucent. First segment of the 

 abdomen but little shining, whitish pilose; second and third segments 

 shining, and everywhere covered with short, stiff black hairs; fourth 

 shining bronzy, everywhere covered with abundant long, bright yellow 

 pile. Legs black, all the tarsi, and tips of femora strongly and fore and 

 middle tibiae entirely and basal half of posterior tibiae weakly reddish. 

 Posterior tibiae without spur. Wings very slightly marked with brown at 

 the separation of the second and third veins. 



One specimen [War Bonnet Canyon, in extreme North-western 

 Nebraska]. 



Xylota analis, Will. 



There are known specimens of this species as follows : In the U. S. 

 National Museum, one male from Gala. [Baron], and two females from 



