212 BULLETIN 31, UNITED STATES NATIONAL MUSEUM. 



hind yellow, across from the root of the wings black. Pile of pleurae 

 yellow. Sciitelluni black, with Ion o^ yellow pile. Abdomen short, broad, 

 shining black, pile yellow, somewhat intermixed with black behind; 

 on the tirst, second, and part of the third segment the ground color is 

 obscured by grayish dust and more abundant pile. Legs deep red; 

 femora, except the tii), black; a ring in the middle of the tibiie deeper in 

 color, or black. Wings hyaline, a little clouded on outer part. 

 Three specimens, from Massuchujsetts (Mr. S. Henshaw), Maine. 



CYNORHINA. 



Cynorhina, sub. gen. iiov., ante, |>. -^09. 



Criorhina (Cynorhixia; umbratili.s, n. sp. (Plate IX, fig. 7.) 



Habitat. — Connecticut ! 



9 . Length, 10™°'. Face black, thickly dusted with white on the sides, 

 a median stripe and the cheeks shining. Antennal ])rocess rather small, 

 the face considerably excavated below, produced downward and some- 

 what forwards. Antennte reddish-brown, third joint large, orbicular. 

 Front broader above than in the preceding species, mostly shining, with 

 rather long yellowish pile; occii)ut black, with yellowish pile and gray 

 pollen. Thorax shining black, with rather abundant, obscurely yellow 

 pile, black across the middle, yellow on the scutellum and pleurse. 

 Abdomen short, oval; black, shining, with short black pile; sides of sec- 

 ond segment broadly, the third less so, the fourth narrowly orange yel- 

 low ; the ground color is, however, almost wholly obscured by thick 

 woolly orange yellow pile, extending less broadly on the sides of the 

 third segment, and narrowly on the margin of the fourth ; pile of sec- 

 ond segment in the middle short, yellow. Legs black, with yellowish- 

 wliite pile; base of middle femora, basal two-thirds of hind femora, basal 

 end of front and middle tibife, and all the tarsi, except the last two joints 

 and hind metatarsi, yellow. Wings somewhat brownish, lighter at the 

 base, a darker cloud near the furcation of second and third veins. 



One specimen, obtained from the blossoms of Prunus virginiamis, in 

 June, Connecticut. 



Criorhina (Cynorhina) intersistens. 



? Xjflota i?odJa Walker, List, etc., iii, 559. 



Eristalis intersistens Walker, List, etc., iii, 615. 



GenuH novum, badia Osteu tjackeu, Cat. Dipt., 138; note 248, p. 253, 1878. 



Rahitnt. — White Mountains, New Hampshire, Pennsylvania, Minne- 

 sota!, New Jersey (Walk.). 



$.9. Length, !» ro 11""". Face yellowish white, thickly covered 

 with silvery dust, in the middle a shining black stripe, reaching from 

 or near base of anrennal process to oral margin; cheeks black, shining; 

 nntenufe black, third joint orbicular, brown. Front in female shining 

 black, with dust on the sides. Frontal triangle black, shining, with dust 

 near the orbits. Occiput black, with whitish pile and thickly covered 



