272 KANSAS ACADEMY OF SCIENCE. 



however, is represented by an almost unwrinkled impressed line, the metanotum 

 more shining and not so extensively rugulose, being appreciably smoother but 

 not entirely so; wings as in the preceding species. First abdominal segment 

 finely striate, the remaining segments smooth, highly polished; very thinly pu- 

 bescent, the pubescence fine and whitish, most abundant on the face and meta- 

 notum. Black ; head yellow, except a large brown spot on the vertex enveloping 

 the ocelli; scape, pedicellum, tegulte and legs testaceous, terminal tarsal joint 

 and claws brown ; two basal segments brownish testaceous, the third and fourth 

 segments with some dark testaceous in the middle. 



Type: University of Kansas. Type locality: Douglas county, Kansas. Au- 

 gust, E. S. Tucker. One specimen. 



Opius nigrocastaneus, n. ep. 



Congeneric with O. aberrans and O. luteiceps. 



Male. — Length, 2.5 mm. Face shining, almost polished, sculptured, but not 

 distinctly, punctures apparent along the inner orbital margin ; clypeus dis- 

 tinctly, closely punctured; cheeks, vertex and occiput highly polished, appar- 

 ently impunctate; antennae twenty-nine jointed, scape broad, apparently a little 

 shorter than the first joint of the flagellum. Thorax highly polished ; the dor- 

 sulum with a round impression or dimple in the middle of the posterior half 

 around which the tegument is rugulose, the parapsidal grooves are distinctly 

 impressed near the anterior margin and are continued posteriorly to this dimple- 

 like impression as faint impressions; metanotum finely rugulose; mesopleura 

 with an oblique, shallow, linear impression ; metapleura polished ; wings as in 

 the preceding congeneric species. Pubescence likewise as in the preceding spe- 

 cies. Castaneous; front, vertex, occiput and cheeks, all but the lower or malar 

 portion, black; scape, pedicellum and legs testaceous, terminal joints of tarsi 

 and claws brown ; dorsum of thorax black, brown streaks following the parap- 

 sidal grooves; ecutellum brown; two basal abdominal segments and base of 

 third abdominal segment brown, remaining portion of the abdomen black. 



Type: University of Kansas. Type locality: Douglas county, Kansas. One 

 specimen. E. S. Tucker. 



Diachasma appalachicola, n. sp. 



Female. — Length, 2 mm. Head polished, apparently without sculpture of 

 any kind; antennte twenty-three jointed. Dorsulum granular, with distinct 

 parapsidal grooves that terminate posteriorly in a striate space in the middle of 

 the posterior half of the dorsulum; mesopleura highly polished, with a linear 

 groove nearly parallel to the dorsum ; metathorax entirely rugose, approaching 

 the reticulate; wings transparent with a yellowish-brown tint, stigma and nerv- 

 ures blackish testaceous ; petiole of the first discoidal cell nearly as Jong as the 

 first abcissa of the radius; first abcissa of the radius a little shorter than the 

 second, the second abcissa as long as the second transverse cubitus; first trans- 

 verse cubitus almost obsolete ; if complete it would apparently mark off on the 

 cubitus a second abcissa equal in length to the transverse median nervure; trans- 

 verse median nervure almost interstitial only, a trifle distad of the basal nervure. 

 Abdomen with the first two segments finely striated, the 8tria3 longitudinal and 

 close together, and extending on to the third segment to form a narrow basal 

 border, which does not extend to the sides, terminating so as to leave the lateral 

 fourths of the base free, the remaining portion of the third segment and the suc- 

 ceeding segments highly polished and smooth ; ovipositor extending beyond the 

 abdomen for nearly two-thirds the length of the abdomen ; very thinly pubes- 

 cent, the hairs fine and whitish, most abundant on the metathorax, but even 



