58 



One specimen, Mt. Washington carriage road, between the one- 

 and two-mile post, elevation about 2,500 feet, July 24, 1915 (C. W. 

 Johnson). Type in the collection of the Boston Society of Natu- 

 ral History. 



Agathomyia canadensis, sp. nov. 



c<\ — Face dull black, proboscis yellow, antennae black. Thorax and scutel- 

 lum velvety black, base of the scutellum and a small spot in front shining black, 

 pleura dull black. Abdomen with the first three segments yellow, the third 

 with a black dorsal spot at the posterior margin, the other segments velvety 

 black. Front and middle legs yellow, hind legs dark brown, the hind femora 

 and tibiae enlarged, with a row of bristle-like hairs above; the hind metatarsi 

 about twice as long as wide. Halteres black. Wings hyaline. Length 3 mm. 



One specimen, Norway Point, Lake of Bays, Ontario, Canada, 

 August 1, 1919 (Dr. J. McDunnough). Type in the collection of 

 the National Museum, Ottawa, Canada. 



EXPLANATION OF PLATE 5. 



Fig. 1. Wing of Platypesa minorata Banks. 



Fig. 2. Wing of Platypeza flavicornis Loew. 



Fig. 3. Wing of Platypeza velutina Loew. 



Fig. 4. Wing of Platypeza anthrax Loew. 



Fig. 5. Wing of Platypeza banksi, sp. nov. 



Fig. 6. Wing of Platypezoides diversa, sp. nov. 



Fig. 7. Hind leg of Platypezoides diversa, sp. nov. (male). 



Fig. 8. Hind leg of Platypezoides diversa, sp. nov. (female). 



Fig. 9. Abdomen of Platypeza banksi, sp. nov. (male). 



Fig. 10. Abdomen of Platypeza banksi, sp. nov. (female). 



Fig. 11. Thorax and abdomen of Platypeza infumata Haliday (female). 



