156 THE CANADIAN ENTOMOLOGIST 



broad preapical ring on the hind tibiae and the hind tarsi piceous. Legs with 

 whitish pile, but the hind tibiae and tarsi black pilose. 



Holotype, Female, Orillia Ont., June 26, 1914 (Curran) and two para- 

 types, same locality, in the author's collection. 



The shape of the abdomen in living specimens is remarkable ; the abdomen 

 is rather broad, and truncate at the apex, and all the terminal segments are 

 visible from above, due to the apex of the fifth segment being strongly curved 

 upwards. The species is found in deep woods. 



Syrphufs vitripennis Meigen. 



Habitat: Manitoba. 



Length, 9mm. Male. Face yellow, with a bluish opalescence and whitish 

 pile, except on the upper angles ; tubercle, margin narrowly and the cheeks, more 

 reddish ; anterior tip of oral margin brown. Cheeks brownish below the eyes. 

 Frontal triangle black, with a bluish reflection, its sides and apex moderately 

 yellowish gray pollinose ; entirely black pilose ; above the antennae the front is 

 reddish yellow on the antennal prominence. Antennae reddish; end of third 

 joint evenly rounded. Posterior orbits wholly gray pollinose, with grayish pile 

 below, yellowish above. Vertical triangle broader than in ribesii or rectus; 

 wholly black pilose. Thorax greenish blue, very strongly metallic, with irregular 

 dull cupreous areas ; pleurae blackish beneath the grayish pollen. A yellowish 

 spot above the root of the wing. Postalar callosities piceous-black. Pile yellow ; 

 above the wings reddish ; on the pleurae more whitish. Scutellunl yellow, scarcely 

 shining, with sparse black pile except on the base and angles, where it is 

 yellowish. Abdomen opaque black; tip of the second, apical half of third except 

 the tip. and the following segments wholly shining. First segment 



obscurely reddish on the sides. Second segment with a pair of moder- 

 ate sized, broadly separated yellow spots which are produced forward 

 to the anterior margin ; the black on the posterior half of the segment extends 

 forward along the margin to beyond the middle of the segment. Second band 

 moderately separated from the anterior margin of the segment, except at the 

 sides where it reaches the antero-lateral angle. In front it is almost straight, 

 with sometimes a small median yellow triangle extending forward ; posteriorly 

 it is biconvex and reaches the margin in over one-third its width. Third band 

 similar. Tip of the fourth and the fifth segment except the base, reddish. Pile 

 on basal one and one-half segments cinereous, on the yellow spots on the second 

 segment, long, bright yellow; on the remaining yellow bands blackish medially, 

 pallid laterally ; elsewhere, rather long, black. Legs reddish-yellow ; basal third 

 of the fourth anterior and two-thirds of the posterior femora, an obscure band 

 beyond the middle of the hind tibiae and the hind tarsi brownish in the middle. 

 Wings hyaline, the base, costal cell and stigma yellowish. Squamae yellowish, 

 pilose above, fringed with yellowish hairs. All the abdominal bands are some- 

 what reddish. 



Female. Antennae sometimes brownish above; arista brownish apicaTly; 

 front shining blackish above the antennee, the reddish color more restricted ; 

 above this a moderately large triangular bronzed arev^ which connects above 

 with the shining greenish and bronzed upper third of the f rons ; pile entirely 

 black. First pair of abdominal spots more oval; sides of first segment yellow; 



