THE CANADIAN ENTOMOLOGIST 159 



entirely yellow anterior tarsi and black haired scutellum. 

 One specimen, Orillia, Ontario. 1914 (Curran). 



Syrphus genualis Williston. 



Face with oral margin, cheeks and median stripe shining black. Second 



and third abdominal bands narrow, straight, and not attenuated laterally, but 

 extending over the margin in practically their full width. Hind legs blackish 

 or brownish, except the base and tip of the femora and base of the tibiae. 



Williston described this species from a female taken at the base of Mount 

 Washington, N.H. I believe that specimens recorded as this species from British 

 Columbia must belong to the following species. 



Syrphus rectoides new species. 

 Eyes bare, median facial stripe and cheeks black or brownish black ; 

 squamae not pilose above. 



Length 8 to 9 mm. Male. Face honey yellow, a broad median stripe, 

 reaching to above the middle, the cheeks and the oral margin broadly, black or 

 brown ; face a little retreating ; tubercle rather long, more conspicuous below ; 

 pile black ; frontal triangle shining black, thickly covered with yellow 

 pollen except just above the base of the antennae, the pile black. Antennae black, 

 third joint yellow on lower half, almost as broad as long, the end evenly 

 rounded. Vertical triangle black, with black pile. 



Thorax cupreous or bluish-black, with yellowish or yellowish brown pile, 

 pleurae with white pile. Scutellum yellow with black pile. 



Abdomen opaque or sub-opaque black, the first segment, si^es of the 

 second, sides and apices of the third and fourth, and the fifth segment wholly. 

 shining black. Second segment with a pair of. moderately broadly separated sub- 

 oval yellow spots, their inner ends rounded, their outer ends produced forward 

 to the antero-lateral angles. Third segment witli a sub-basal fascia, with a 

 small median anterior triangular projection, almost evenly bi-convex posteriorly, 

 and narrowly or not quite reaching the lateral margins. Yellow band on the 

 fourth segment sim'ilar, but slightly narrower, apical margins of fourth and fifth 

 segments and basal angles of the fifth, yellow. Pile of abdomen yellowish on 

 basal corners, and the yellow spots, elsewhere, shorter, black. 



Legs yellow; basal half of an,terior four femora, and the hind legs, except 

 the bases of the tibiae, brown. 



Wings hyaline or slightly darkened ; stigma and sub-costal cell pallidly 

 luteous. 



Female. Abdominal bands narrower ; pile shorter ; legs yellow ; hind 

 femora with sub-apical band, and the hind tibiae and tarsi, except the basal 

 quarter of the tibiae, reddish brown. Otherwise similar to the male. 



Holotype, male, Cranbrook. B.C.. May 22, 1919, about 3,400 ft. ; Allotype, 

 Bull River, B.C., May 20, 1919. 3,500 ft.; Paratypes. two females. Cranbrook, 

 B.C., collected by C. B. D. Garrett. Types in Mr. Garrett's collection, paratype 

 in the author's collection. 



Very similar to S. rectus Osten Sacken, but readily distinguished by the 

 facial stripe and bare squamae ; allied to S. quinquilimbatus, l)ut the legs of the 

 female are yellow basally and the scutellum is lighter; dift'ers from S. geniialis 



