SYNOPSIS OF NORTH AMERICAN SYRPHID^. 129 



segment narrowly yellowish on the sides; the second segment with a 

 large, oval, yellowish spot on each side, extending rather further back 

 in the male, and sometimes narrowly bordered on the sides behind with 

 black; pile short, appressed, nearly Avhite. Legs black, extreme tip of 

 all the femora, basal third of all the tibice and more or less of the tip, 

 and the first three joints of the middle and hind tibiae, luteous or yellow. 

 Wings cinerous hyaline, toward the base yellow, in the middle in front 

 with a large subfuscous spot ; distal part of the wings distinctly brown- 

 ish tinged. 



Three female specimens from Washington Territory and California 

 and one male from Virginia (Pergande). 



Myiolepta nigra. (Plate IV, fig. 15. ) 



Myiolepta nigra Loew, Centur., x, 52. 



ffabifat. — Pennsylvania (Lw.), New York, North Carolina! 

 9 . Length, 7 to 8,5™™. Black, shining, wholly short white pilose. 

 Front shining, on each side near the eyes narrowly white pollinose. An- 

 tennte brownish red, the first joint black; third joint orbicular; arista 

 luteous. Face strong!}- concave in profile, the lower part considerably 

 produced ; across below the base of the antennae, and a narrow stripe on 

 each side running from the eye to the oral margin, white pollinose. Front 

 margin of the thorax lightly whitish pollinose. Legs black, the first 

 three joints of the middle and hind tarsi light yellow. Wings dilutely 

 yellowish, near the base hyaline, on outer part faintly blackish. Hal- 

 teres dilutely yellow ; tegulse white. 



One specimen, from Professor J. A. Lintner. 



RHINGIA. 



Bhingia Scopoli, Entom. Caruiolica, 358, 1763. 



Moderately large, plump, bare species. The abdomen with yellow- 

 ish-red markings. Head hemispherical, flat behind, somewhat broader 

 than the thorax. Antennae short, third joint short, oval, with bare 

 arista. Proboscis long, slender, divergent at the tip. Face small, 

 yellowish, without tubercle below, produced into a long, slender snout- 

 like epistoma, under which the proboscis, when at rest, lies ensheathed. 

 Eyes naked, contiguous in the male. Thorax not very long. Scutellum 

 translucent-yellowish. Abdomen broader than thorax, not much longer, 

 oval, arched. Legs slender, femora not thickened ; hind metatarsi long, 

 somewhat thickened. Marginal cell of wings open, third longitudinal 

 vein gently convex anteriorly, joining the costa beyond the tip of the 

 wing, anterior cross-vein toward the base of the discal cell, slightly 

 oblique. Type of genus, B. rostrata Linn6, Europe. 



A well-marked genus ; in the United States so far represented only 

 by a single species, which occurs in the Atlantic States, in abundance 

 on low vegetation near brooks and in meadowlands. 



