PARASITIC WASPS OF BRACONID SUBFAMILY EUPHORINAE 31 
at antennae; malar space as long as basal width of mandible; frons only slightly 
declivous, polished; postocellar line subequal to ocellocular line, more than twice 
the longest diameter of an ocellus; lateral ocelli situated considerably before pos- 
terior declivity of head; cheeks and temples very broad, fully as broad as eyes; 
eyes very prominent, more nearly horizontal than vertical; temples and cheeks 
margined; occiput immargined; antennae about as long as head and thorax com- 
bined, 18-segmented; scape twice as long as thick, covered with short spines; 
pedicel longer than thick; all flagellar segments longer than broad, the first three- 
fourths as long as scape. 
Thorax considerably narrower than head; mesoscutum smooth and shining, 
with only a few weak punctures on anterior declivity; notauli shallowly impressed; 
impression at base of scutellum deep, foveolate, with the middle septum most 
prominent; scutellum small, polished, a little convex; propodeum closely rugulose, 
rather strongly declivous on posterior half; sides of pronotum smooth above and 
with the longitudinal impression transversely roughened; mesopleurum weakly 
rugulose with a broad oblique polished band from upper end of posterior margin 
to prepectus; legs slender; anterior femora and tibiae slightly thicker than those 
of posterior legs; anterior tarsi much shorter than their tibiae, the second, third, 
and fourth segments broader than long, the apical segment much enlarged; 
calearia of posterior tibia about one-fourth as long as metatarsus; stigma 
large, much less than twice as long as broad; radial cell less than one- 
third as long as stigma; first abscissa of radius punctiform or lacking, the second 
abscissa rather strongly curved; recurrent vein entering second cubital cell very 
near intercubitus; median and submedian cells hairy; medius very faint; sub- 
mediellan cell complete; nervellus much shorter than lower abscissa of basella. 
Abdomen on third segment as wide as thorax; first tergite broadening gradually 
to apex, finely rugulose, the spiracles considerably beyond middle; remaining 
tergites polished, the fused second and third very large; ovipositor weakly 
exserted, straight. 
Head mostly testaceous, the vertex more or less extensively piceous; antennae 
brownish, paler basally; thorax piceous to black, pronotum more or less fer- 
ruginous; legs brownish yellow; wings hyaline; stigma light brown, hyaline at 
extreme base; veins very pale; abdomen more or less piceous, the first tergite 
black. 
Type locality Steamboat Springs, Colo. 
Type.—United States National Museum no. 49916. 
Two female specimens collected by C. F. Baker and bearing his 
numbers 1329 (type) and 1341 (paratype). 
(5) EUPHORUS TUBERCULATUS, new species 
Differs from other Nearctic species that lack complete notauli and 
have the face only weakly hairy in its hyaline wings, incomplete 
intercubitus, hairy median and submedian cells, and in the absence 
of nervellus. 
Female.—Length about 2 mm. Head transverse, margined only on sides 
behind; face smooth, much broader than long; malar space at least as long as 
width of base of mandible; frons smooth, without a median carina; ocellocular 
line slightly longer than postocellar line, twice diameter of an ocellus; vertex and 
temples polished; cheeks nearly as broad as eyes; antennae of type broken, 14 
segments remaining; scape about twice as long as thick; pedicel as long as thick. 
Thorax a little narrower than head; notauli distinctly impressed only ante- 
riorly; mesoscutum smooth; suture at base of scutellum broad and deep, with a 
median longitudinal carina dividing it into two large foveae; propodeum retic- 
ulate rugose; sides of pronotum smooth except for some delicate lineolation 
below; mesopleurum smooth and shining, with a small rugulose area just above 
ventral margin; all femora slightly thickened; stigma very broad, nearly or quite 
two-thirds as broad as long, the outer side a little convex; radial cell less than half 
as long as stigma; first abscissa of radius wanting; intercubitus arising from 
stigma and obliterated well before attaining cubitus; cubitus distinct; recurrent 
vein absent; subdiscoideus only faintly indicated; median and submedian cells 
hairy; nervellus lacking or represented by a short spur; submediella very weak 
or obsolete. a 
Abdomen on third tergite about as wide as thorax; first tergite not distinctly 
broadening apically; spiracles at about the middle; the spiracular tubercles very 
