248 NOTES. 



Face, front and vertex densely clothed with a grayish pollen; lower 

 part of the face very much projecting; a brownish stripe runs across 

 the cheek, from the eye to the mouth; antennae brownish, grayish 

 pollinose; arista bare, biown, reddish at base. Thoracic dorsum yello- 

 wish-gray, with three brown stripes ; the intermediate one geminate and 

 abbreviated posteriorly. Scutellum brownish -yellow. Abdomen brown, 

 shining; first and second segments whitish yellow (as if translucent), 

 the second brown posteriorly and with a longitudinal brown line in the 

 middle. Legs grayish brown ; hind femora slightly incrassate, on the 

 under side with a brush of short spine -like bristles. Wings distinctly 

 tinged with brownish, especially on the distal half, anteriorly; first 

 posterior cell distinctly petiolate at the distal end, the petiole being 

 equal in length to the small cross-vein. 



Habitat, Quebec, Canada (Mr. F. X. Belanger) ; a single male spe- 

 cimen. The interval between the distal ends of the first posterior and 

 discal cells is a shallow sinus, and not a right angle, as in the following 

 species. 



Bracbyopa notata 0. Sacken, <J $. (Bull. Buff. Soc. 1. c.) 



l ? ellowish- ferruginous; abdomen with brown incisures and with a 

 brown dorsal line; arista pubescent. Length: 56 mm. 



Face and front pale yellowish, with a yellowish silvery pollen; 

 cheeks with a faint brownish stripe; antennae yelloM'ish - ferruginous ; 

 arista yellowish-brown, pubescent; vertex yellowish-ferruginous. Thorax 

 reddish above, clothed with a yellowish pollen, which leaves bare three 

 reddish stripes; the intermediate one geminate. Scutellum reddish- 

 yellow, nearly as long as it is broad; abdomen brownish -yellow, with 

 the hind margins of the segments distinctly, but narrowly bordered with 

 brown; lateral margins likewise brownish; in the middle of the back, 

 a narrow, longitudinal brown stripe, sometimes interrupted at the incis- 

 ures, in some specimens evanescent on the fourth segment. Halteres 

 whitish. Legs brownish -yellow, hind tarsi brown. Wings somewhat 

 tinged with brownish-yellow, more distinctly brownish on the apex and 

 along the cross-veins at the distal ends of the first posterior and discai 

 cells; first posterior cell short-petiolate at the dijtal end. 



Habitat, White Mountains, N. H. , beginning of July. Two males 

 and a female. In this species the interval between the distal ends of 

 the first posterior and the discal cell is nearly a right angle. 



I have a fourth specimen, a female, fiOin Quebec (Mr. Belanger\ 

 which is smaller, and very pale in coloring, without any brown stripe 

 on the abdomen, the incisures but slightly infuscated, the wings almost 

 hyaline, etc. I take it for a somewhat immature S. notata. 



218. W.ucella Maximilian!. When Br'.uer, in his Entom. Bericht 

 fur 1868, says that this specios is a synonym of VoluceUa, americoita 

 Wied., he probably means V. mexicana Macq., as a V. americana Wied. 

 does not exist. 



219. VoluceUa fasciata and pusilla. Until further evidence I do 

 not unite these two species, Macquart's suggestion notwithstanding. 

 The M. C. Z. has pus ilia from Haulover, Florida, March 11 (MM.. 



