26o the; CANADIAN ENTOMOLOGIST. 



This species is very distinct from T. geminatus Say and may be dis- 

 tinguished readily by its very dark shining appearance, and definitely distin- 

 guished in specimens which approach geminatus in color by the basal process on 

 the hind femora. T. geminatus does not appear to be common west of the 

 mountains, but I have specimens from British Columbia. I have seen no speci- 

 mens of occidentalis from east of the Rockies. An occasional specimen has the 

 first band only slightly interrupted. 



A GENUS AND SPECIES OF SYRPHIDAE NEW TO CANADA 



BY C. HOWARD CURRAN^ 



OrUiia, Ont. 

 The type species of the genus Chalcomyia, C. area Loew, was taken in 

 Illinois. A second species, which is herein described, was taken by the writer 

 on May 8th, 192 1, at Orillia, on the common wild black or pin cherry. Two 

 specimens were taken late in the afternoon, which was sunny, but a cold wind 

 was blowing. Both specimens were resting upon flowers and resembled a 

 small Muscid. They were a good ten feet from the ground. The legs in this 

 species are entirely deep steely black, as is the general color. C. area has the 

 legs considerably pale. 



^ Chalcomyia calcitrans n. sp. 



Habitat. — Ontario : early spring ; edge of woods. 



S . Lvcngth, 6 to 6.5 mm. Eyes bare, moderately separated. Face and 

 front shining deep black, the face, except a broad median stripe, silvery pubes- 

 cent ; cheeks shining ; facial pits long, almost as in Chilosia. Face wihout pile, 

 in profile strongly convex, with small but conspicuous tubercle below the middle ; 

 oral margin projecting as far forward as the antennal base and produced mod- 

 erately downward. Vertical triangle with sparse, long black and white pile 

 behind the anterior ocellus ; front bare. Posterior orbits with long gray pile be- 

 low, becoming shorter and more whitish above. First antennal joint black, 

 second brownish yellow, third reddish yellow ; arista black, bare. 



Thorax, scutellum, abdomen and legs deep shining bluish or greenish 

 black. Thorax with short yellow pile, with some longer black hairs around 

 the sides of the dorsum ; pleurae almost bare. Scutellum short yellow pilose, 

 with some longer black hairs apically. Abdomen with short, inconspicuous 

 whitish pile, wholly shining. All the femora somewhat thickened ; hind tibiae 

 slightly arcuate, tarsi with pads of golden pubescence beneath. 



Wings sub-hyaline, slightly tinged with luteous ; stigma luteous. 



The abdomen is almost triangular in shape, the hypopygium large and in- 

 clined to the right. The color appears bluish black to the naked eye, but slightly 

 greenish black under the microscope. The fly is very shining. 



Holotypc. — $, Orillia. Ontario, May (S, 1921 (Curran), in the Canadian 

 National Collection, Ottawa. Paratype, $ , same place and date, in the author's 

 collection. 



Since the above description was prepared two further specimens, both 

 males, have been identified. They were taken at McDiarmid, Ont., by N. K. 

 Bigelow, of the Ontario Mnsettni, Toronto. The species is evidently northern 

 in distribution. 



