NORTH AMERICAN DIPTERA. 
361 
length, rather long, the second joint slightly longer than thick. 
Proboscis short, hardly one-half as long as hight of head, ileshy, 
labella well developed ; palj)i well developed, a little thickened at 
tip. A^pical pair of scutellar inacroch?eta? not decussate, leaching 
onlv the second segment ; a small pair in front of these, and a lateial 
pair nearer the suture. Abdomen rather broad, ovate, somewhat 
vaulted, first segment not abbreviated; macrocheetre marginal on 
third segment, discal and marginal on fourth (sometimes the second 
segment with some longer lateral bristles, which appear like macio- 
chtetm). Legs not elongate, rather slender. Wings with a small 
costal spine, third vein spined at base; apical cell closed in margin 
a little before the tip of the wing ; fourth vein bent at an obtuse 
angle, without stump or wrinkle at its bend ; hind cross-vein sinuate, 
slightly nearer the bend of fourth vein. Type, H. parvipes n. sp. 
This genus can hardly be confused with Fhorocera, to which it 
bears some resemblance. The facial ridges are bare, but the frontal 
bristles descend in a row just outside the facial ridges, and near 
enough to cause reasonable doubt as to whether they should be con- 
sidered cdiate. Besides this distinction, the ej es aie bare, and the 
apical cell is closed. 
Ilypertrophoeera parvipes 11 . .sp. 9 (?). — Grayish ov cinereous. Eyes 
very flark brown, front and face silvery white pollinose, cheeks inclining to 
flesh color, frontal vitta broad, very light grayish brown, enclosing the ocelli 
behind ; antennai entirely light brownish yellow, first joint a little moie deeply 
colored, the second joint with some black bristles, arista black ; proboscis brown- 
ish yellow, partly blackish behind toward base, palpi brownish yellow, black 
bristly; occiput cinereous, black hairy, fringe on orbital margins not so well 
defined. Thorax, humeri and pleiirce cinereous, with short black hairs and pos- 
teriorly directed black bristles; .scutellum cinereou-s, widely browuisb yellow on 
bind border. Abdomen light brownish yellow, silvery pollinose, tawny toward 
the hind margin of segments, sutures lighter, with a broad median cinereous 
pollinose vitta interrupted at the sutures and indistinct in some lights, entirely 
covered with short, black, appressed bristles; ten marginal macrochfette on third 
segment, and about as many each of discal and marginal on last segment; first 
and second segments without macrochsetse, except some macrochfeta-like bristles 
on side of second segment. Legs blackish, brownish yellow^ at joints, femora 
cinereous; coxse. femora and tibipe bristly; tarsi ratber delicate, claws and pul- 
villi short. TI"i?it;s subhyaline, slightly grayish, veins light brownish or tawny ; 
tegulffi white; halteres brownish yellow, knobs whitish. Length i.5 mm.; of 
wings 6 mm. 
Described from oue sjtecimeii, taken July 8th; Las Cruces, N. M. 
ApliriR oeypterata n. sp. . — Much the. facies of an Ocyptera; black, 
silvery, abdomen reddish on sides. Head, thorax and abdomen nearly equal in 
(4(i) DECEMBER, 1891. 
TRANS. AM. ENT. SOC. XVIII. 
