black pustules characterized in the specific description of pus- 
fn v. d. W. (Biologia, Dipt. Il, pp. 329). The wing-design 
_ can be readily seen from the figure given; the darker portion 
bei grayish or black, while the remaining shaded portion is 
_ yellow. In general design this wing agrees with van der Wulp’s 
z ties ; therefore taking all together this species is no doubt a 
It is well to mention here, that this genus is closely allied 
_ to Myennis R. D., differing, as van der Wulp mentions, but not 
as to the number of its scutellar bristles. There are still more 
important variations, as for instance : the position of the small 
cross vein in relation to the discal cell, and the long drawn out 
lobe of the anal cell of the genus Myennis R. D. 
