36G 
C. H. TYLER TOWNSENI>. 
LaceoproNopa <sar(‘oplia$;iiia n. sp. (?).— Black and cinereous. 
Eyes brown ; front, face and cheeks cinereous, blackish in some lights, with a 
silvery lustre in others; frontal vitta dark brown or blackish, averaging one- 
third the frontal width, split behind enclosing the ocelli ; anteniue dark brown, 
second joint lighter, very bristly, third joint blackish; arista very dark brown 
or blackish, excei>t a section at end of thickened ]iortion, which is yellowish ; 
proboscis blackish, light brown toward ti]> ; palpi reddish brown, blackish toward 
tip, black bristly; occiput ciTiereous, black bristly, particularly so on the genal 
portion below the eyes, where the bristles are longest, orbital margins with a 
fi-inge of bristles. Thorax bluish black, black hairy and bristly, with four cine- 
reous vittae, the median pair more distinct; scutellum, humeri and pleurae bluish 
black, more or less shaded with cinereous. Abdomen blackish, shining, covered 
with short black bristly hairs, basal portions of segments more or less broadly 
and interruptedly cinereous iiolliiiose, not showing in some lights, anal segment 
almost entirely cinereous; first and second segments each with a small, lateral 
macrochaeta, and some macrochaeta-like bristles on sides; third segment with a 
median pair, a lateral pair, and a single macrochaeta between the median and 
lateral pairs, some longer bristles below; fourth segment with a strong lateral 
pair on each side, and several weaker median bristles. Legs black, faintly 
silvery, black bristly, except tarsi ; claws and pulvilll somewhat elongate, iriaps 
grayish hyaline, veins brown ; tegulae white, slightly silvery ; halteres brownish. 
Length 7 mm.; of wing 6 mm. 
Described from one specimen received from Mr. Chas. Robertson, 
Carlinville, 111. 
Phorocera e<lwar«lsii Willi.st, Scudd. Butt. N. E. 1921, pl.*lS9, fig. 25, . 
— Black and cinereous. Head, thorax and abdomen nearly same width. Eyes 
light brown, thickly pubescent; front about one-third the width of head, promi- 
nent, golden or brassy pollinose on the sides, with some fine hairs outside the 
frontal bristles; frontal vitta very dark brown, blackish, about one-third width 
of front, widening behind, where it splits on each side of the ocelli ; ocellar area 
with two pairs of bristles and a tuft of black hair, the front pair of bristles 
strong, directed forward and outward ; a very strong bristle at each vertical 
angle directed backward, two nearly as strong exactly in front and similarly 
directed, the three on each side being in a straight line and equidistant from 
each other ; no orbital bristles ; the other frontal bristles weaker, directed in- 
ward, decus.sate to base of antennpe, extending downward on sides of face to 
below the hase of third antennal joint (a little below middle of eyes); sides of 
face otherwise bare, silvery white, moderately wide; face receding, epistoma 
prominent; facial depression rather deep, wide, silvery white; facial ridges 
strongly ciliate nearly to base of third antennal joint, beyond the ])oint to which 
the frontal bristles descend ; cheek space rather wide, silvery, black hairy below, 
with some black bristles on low'd' and front margins; vibrisste strong, decussate, 
inserted considerably above the oral margin ; antennre not quite as long as the 
face, blackish, second joint reddish yellow, black bristly before; fii-st joint short, 
second but little longer, third about four times the length of second, of moderate 
and equal breadth ; arista blackish, thickened for more than half its length, 
microscopically very short pubescent, distinctly 3-jointed, the second joint not 
elongate; proboscis hardly or about as long as the bight of head, moderately 
stout, brown or blackish, labella devploned ; palpi yellow, curved, somewhat 
