468 Annals of the South African Museum. 



being convex and projecting- is deeply set in the ventral face of the last 

 segment, the abdomen being depressed in the only example I have 

 seen. The last steruite is deeply and broadly scooped in front of the 

 genital armature. Legs light testaceous like the coxae and the tro- 

 chanters. Femora ashy fuscous on the upper side, this coloration 

 extending obliquely on the basal half of the anterior and posterior 

 sides. Last two tarsal joints blackish. Wings slightly greyish, the 

 transverse apical and postical nervures as well as the fifth longitudinal 

 broadly umbrate. Squamae whitish with a broad, apical, dirty white 

 band limited inwardly by a slender brownish line. Halteres testaceous. 

 One $ from Port Elizabeth, Cape Province, alleged to have been bred 

 from a honey-bee. (J. W. FitzSimons.) This biological indication is 

 the more' interesting that nothing was hitherto known of the habits 

 of the Tachiuo-Oestrid Diptera. 



