353 
with only the central streak. Legs yellowish testaceous, coxae, and 
femora except their apices fuscous, tibiae in middle and the apical tarsal 
segment sometimes slightly darkened. Wings clear, costal and first to 
fifth veins brown. Calyptrae white. Halteres yellow. 
Eyes bare; frons distinctly narrowed posteriorly, at vertex less than 
one third of the head-width, both orbits and interfrontalia with numerous 
microscopic pale hairs; lunule large, exceeding in size the third antennal 
segment, regularly rounded above, its upper half hairy; third antennal 
higher than long; second segment of arista at least three times as long 
as thick; face concave, receding below; several short setulae anterior to 
the genal bristle; palpi broad. Dorsum of thorax with rather dense short 
setulae, the median line almost obliterated; usually three and sometimes 
four dorsocentrals present, and between them 8 or more series of short 
setulae which extend almost to posterior margin; scutellar bristles equal 
in length. Abdominal tergites 1 to 4 in female subequal, fifth short; 
ovipositor as in Figure 6, Plate XLVII; hypopygium of male as in 
Figures 4, 8, and 10, Plate XLVII. Legs normal. Wings broad; veins 
3 and 4 distinctly convergent apically; penultimate section of fourth vein 
usually longer than ultimate section of fifth. 
Length, 2.5—3 mm. ~ 
Type, female, allotype, and four female paratypes, St. Joseph, IIL. 
May 3, 1914 (J. R. Malloch). 
Larval host unknown. 
LEUCOPIS SIMPLEX Loew 
I have before me a series of 6 specimens of this species which I took 
at Dubois, Ill., May 21—25, 1917, and one from Muncie, IIll., May 24, 
1914. 
The characters cited in the key to species should serve to distinguish 
this species from its allies. Male hypopygium as in Plate XLVII, 
Figure 9. 
The larval host is unknown to me. 
LrEucopis PARALLELA, SP. Nn. 
Female. —Black, densely gray pruinescent, the color of the pruines- 
cence of abdomen paler than that of thorax. Frons lead-gray, orbits 
paler; antennae black, second segment whitish pruinescent; palpi black. 
Thorax lead-gray pruinescent, not vittate. Abdomen whitish gray 
pruinescent, first tergite subshining fuscous except on lateral margins, 
second tergite with the usual fuscous spots very large, fused centrally 
and extending to anterior margin, the other tergites unmarked. Legs 
black, extreme apices of femora, bases and apices of tibiae, entire fore 
metatarsus, and the mid and hind tarsi except the apical segment yellow. 
Wings clear, veins brown. Calyptrae white. Halteres white. 
Frons at vertex less than one third of the head-width, slightly widen- 
ed anteriorly, the surface with microscopic hairs; lunule hairy, subtrans- 
