10 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 69 



Femdle. — Length, 2 mm. Face only slightly broader at base of 

 clypeiis than long, weakly punctate, shining; frons and vertex 

 smooth and shining; ocell-ocular line apparently equal to postocellar 

 line ; antennae very nearly, or quite, as long as the body, tapering 

 strongly to the tip, the apical segments slender and all much longer 

 than broad; thorax short and robust; mesoscutum with its entire 

 surface covered with sharp, closely-set punctures, which are a little 

 deeper and larger on the posterior part of the scutum than ante- 

 riorly; scutellum rather large, convex, distinctly punctate, shining; 

 propodeum finely rugulose, with a more or less distinct median lon- 

 gitudinal carina ; mesopleurae polished except anteriorly where they 

 are closely, sharply, punctate and opaque; stigma large, not more 

 than twice as long as broad; radius arising from middle of stigma, 

 the outer side of the latter being fully as long as the inner; radius 

 joractically perpendicular to anterior wing margin, and a little longer 

 than intercubitus which it joins in a rather pronounced angle; pos- 

 terior coxae extending to the middle of abdomen or a little beyond, 

 smooth and shining, Avith only a few small punctures on the outer 

 face; spurs of posterior tibiae of apparently equal length and about 

 half as long as the metatarsus ; abdomen short but about as long as the 

 thorax; chitinized plate of first tergite broadening gradually pos- 

 teriorly, its apical lateral angles rather abrupt, not evenly rounded 

 off, mostly smooth and polished, weakly punctate only on the apical 

 third; lateral membranous margins of this tergite distinct along the 

 apical two-thirds; second tergite transverse, more than three times 

 as broad as long, the sculptured part narrower at base than at apex 

 and defined laterally by curved grooved lines, setting off broad 

 smooth lateral margins; the sculptured area of this tergite is only 

 very weakly, almost indistinctly, roughened, shining; third and fol- 

 lowing tergites smooth and polished, the third twice as broad as long, 

 the others much shorter; hyj^opygium hardly reaching apex of last 

 dorsal segment; ovipositor sheaths subexserted. Black; antennae en- 

 tirely black; tegulae deep black; all coxae wholly black, remainder of 

 legs yellow except extreme apex of posterior femora, the apex of pos- 

 terior tibiae, and the hind tarsi entirely, which are blackish ; the pos- 

 terior tarsi are unusually dark ; sides of the venter at base yellowish. 



Cocoons. — Small, dirty white, gregarious, not surrounded by a 

 mass of loose silk. 



Type.—Q^t. No. 28050, U.S.N.M. 



Tyjye-IocaUfy. — Bangor, Me. 



Host. — jSphinco gordius StoU. 



Described from four female specimens reared from a larv^ae of the 

 above host by J. V. Schaffner, jr., under Gipsy Moth Laboratory No. 

 12184 J 2. The cocoons were formed September 14, 1923, and the 

 adults emerged June 23, 1924. 



