OCT. 1906. 
NORTH AMERICAN PARASITIC II YMENOPTERA. 
147 
scarcety shagreened, the median line strongly impressed ; axillae meet- 
ing distinctly before the scutellum. the latter iy 2 times as long as wide, 
with a marginal frenum. Pleurae smooth, the metapleurae above 
slightly striate or rugose ; hind coxae rugose. Postscutellum with a 
short pjramidal spine; lateral angles of metanotum acute, its surface 
rugose. Abdomen about as long as the head and thorax, the second 
segment about iy 2 times as long as the remaining segments together, 
striate on the basal fourth. Legs brown, the femora strongly darkened 
medially, the coxae black, rufous at their tips. Trochanters, tips of 
tibie and tarsi honey-yellow. Wings distinctly tinged with fuscous, 
more strongly so anteriorly. Stigmal vein long and curved, 2y 2 times 
as long as the stigma. 
One female from Milwaukee, Wisconsin, June I, 1906. 
This species resembles C. carinatus Ashmead, but differs from 
the male of that species by its shorter flagellum and black scape. 
Ceraphron quissetensis sp. nov. 
Female. Length 1.4 mm. Black ; the legs, including coxae and base 
of antennal scape yellow. Head rather strongly punctate, about twice as 
wide as thick antero-posteriorly ; vertex not or scarcely impressed behind 
the ocelli, the median impressed line evident from behind the ocellus to 
the edge of the facial basin which is deeply impressed. Antennae 10- 
jointed. slender, not incrassate toward the tips. Pedicel scarcely longer 
than the first flagellar joint ; second, third, and fourth flagellar joints 
equal, each two-thirds the length of the first, the second not quite twice 
as long as wide ; fifth, sixth, and seventh growing longer, the last joint 
one-half longer and sharply pointed. Scape and flagellum black, the 
basal half of the scape yellow ; the scape half the length of the flag- 
ellum. Mesonotum distinctly punctulate, the median line distinct ; 
axillae united in front of the scutellum, the latter about one-half longer 
than wide. Postscutellum spined ; pleurae smooth, except the upper 
part of the metapleurae which is more or less irregularly roughened 
and not distinctly ridged above. Posterior angles of metathorax 
strongly produced into sharp, pointed teeth, the lateral angles also pro- 
jecting angularly. Wings strongly tinged with fuscous ; the marginal 
vein curved, almost closing the cell. Abdomen black, very highly pol- 
ished, iy 2 times as long as the head and thorax together; second seg- 
ment about two times as long as the remaining ones taken together, 
