210 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.53. 



the funicle, and but slightly longer than the two preceding funicle 

 joints. Head transverse, vertex broad, ocelli in a low triangle, the 

 occiput concave and angularly defined with a faint carinate margin ; 

 posterior orbits receding; face convex, frons and vertex distinctly 

 reticulated, the face below antennae much more closely finely sculp- 

 tured; eyes bare; antennae inserted somewhat below the middle of 

 the face; pronotum short, narrower than the mesonotum, and punc- 

 tate; mesoscutum and scutellum closely and deeply punctate, opaque, 

 the sculpture of the scutellum slightly finer than that of the meso- 

 scutum; axillae somewhat shining, with shallow reticulations; meso- 

 pleura closely punctate ; propodeum punctate with a distinct median 

 carina, the lateral folds rather shallow toward the apex ; anterior wings 

 without marginal cilia, the discal cilia short but distinct; posterior 

 wing with distinct short marginal cilia; marginal vein of the front 

 wing nearly three times as long as the postmarginal, the stigmal 

 and postmarginal subequal ; abdomen shorter than the thorax, nearly 

 as broad as long and subtruncate apically, the tergites smooth, the 

 first tergite equal to about one-third the length of the abdomen, fol- 

 lowing tergites gradually shortening. Head and thorax dark bluish, 

 with more or less distinct brassy reflections on the lower part of the 

 face and the mesoscutum ; scutellum almost black, but with coppery 

 reflections in some lights; abdomen black; wings hyaline at base and 

 apex but with a broad transverse fuscous band or cloud between the 

 base of the marginal vein and the apex of the stigmal or a little be- 

 yond; venation dark brown; legs, including coxae, all brownish tes- 

 taceous; antennal scape pale, the pedicel and flagellum dark brown. 



Male. — Agrees with the female in every respect, except that it is 

 smaller and slightly more highly colored. 



Type-locality. — Urbana, Illinois. 



Type.—Q^X. No. 20388, U.S.N.M. 



Host. — Blatta orientalis. 



Described from eight specimens reared by J. R. Malloch from egg 

 cases of the above-mentioned Blattid August 14, 1914. The writer 

 obtained the same species from o^gg cases of a Blattid at College 

 Park, Maryland, June 10, 1914, 



PTEROMALUS HEMILEUCAE, new species. 



Femdte. — ^Length 3.8 mm. Head and thorax with close deep punc- 

 tation; head broader than the thorax, viewed from in front broader 

 than high, the cheeks convexly rounded, clypeal region strongly 

 striated, anterior margin of the clypeus with a shallow median 

 emargination ; mandibles each with four strong teeth; ocelli in a 

 low triangle, the postocellar line distinctly longer than the ocellocu- 

 lar line ; first funicle joint slightly longer than the pedicel, the second 

 a little shorter than the first, following funicle joints successively 



