Dec, 1913.] The Genus Myiolepla. 207 



Williston reports three females from Washington and Momit 

 Hood, Oregon; Coquillett studied a male collected by Kincaid 

 at Virgin Bay, Alaska, and R. C. Osborn took a female specimen 

 at Port Renfrew, British Columbia, June 30, 1901. I have used 

 the latter in my study of the species. 



Myiolepla nigra Loew. Rather large, black with the exception of 

 the middle and posterior feet which are partially white, wing 

 hyaline at base, unevenly infuscated on distal half; maximum 

 length about 10 millimeters. 



Male: Vertical triangle rather small, shining black, frontal 

 triangle and face largely gray poUinose, a patch above the bases 

 of the antennse, one on middle of face, including the tubercle 

 and extending forward to the oral margin, and the cheeks mostly 

 shining black; antennae with third segment rather small, brown, 

 arista basal and of the same color as its segment. Thorax with 

 white hair, legs shining black with the exception of the first 

 three tarsal segments on each which are pale, sometimes the front 

 feet are entirely black or the first three segments may be inter- 

 mediate in color, wings h\'aline at base, apical part infuscated, 

 but paler along the posterior margin, first posterior cell closed, 

 the petiole much less than half as long as the anterior cross-vein, 

 second vein abruptly curved at the apex and meeting the costa 

 at nearly a right angle. Abdomen shining black, sparsely clothed 

 with short hair. 



Feinale: Colored like the male, except that the front tarsi- 

 are unifomi black in all the half dozen specimens studied. Eyes 

 widely separated, front narrowed above; face not tuberculate, 

 gradually concave from bases of antennae to the oral margin. 



Specimens from Medina County, Ohio and from Montreal, 

 Canada. Former writers have reported the species from Pennsyl- 

 vania, New York and North Carolina. 



In Wiener Entomologische Zeitung, Volume I, 1SS2, pg. 250, 

 Dr. E. Becher has described a species of Myiolepta as M. obscura. 

 There are pretty strong reasons for believing that this is a synonym 

 of M. nigra Lw. I have not been able to procure examples of 

 obscura from Europe, so I have made no comparisons of speci- 

 mens. Becher's type was procured in Austria. 



Myiolepta strigilata Loew. Smaller, rather robust, uniform 

 brown, wings pale yellowish, legs pale from the apexes of the 

 femora. Length 5-7 millimeters. 



Male: This sex differs from the same sex in other American 

 species studied in having the eyes narrowly separated. Williston 

 characterized this species by the luteous spot on either side of 

 the face, adjacent to the cheek. In a inale before me and in other 

 males I have seen, this spot is very obscure, although present. 

 The whole face and frontal triangle, except the cheeks and tubercle 

 with a narrow extension to the oral margin, is rather densely 



