80 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.49. 



above the extreme wing apex, Abdomen ovate; first tergite a little 

 longer than broad and scarcely narrowed at base, with distinct 

 sublateral carina and a slight median carina on the posterior half, 

 the space between the sublateral carina elevated and rugose, the 

 lateral margins of segment nearly smooth; tergites beyond the first 

 smooth; ovipositor one-third the length of the abdomen. General 

 color reddish stramineous; eyes, ocelli, antennae except scape, and 

 ovipositor sheaths black; scape, apices of mandibles, and apical 

 joint of all tarsi brownish; wings to or a little beyond the apex of 

 stigma fuscous, hyaline at apex. 



Male. — Essentially like the female. 



Type-locality. — Carlinville, Illinois. 



Type.— Csit. No. 19363 U.S.N.M. 



The allotype is labeled Champaign, Illinois, and a paratype female 

 Roslyn, Virginia. Host unknown. Ashmead's manuscript name is 

 apphed to the species. The type was collected by Chas. Robertson. 



OPIUS CAKALICULATUS, new species. 



Female. — Length, 2.5 mm. Head strongly transverse, mostly 

 smooth; frons faintly punctate laterally and the face more distinctly 

 so, the latter with a strong median ridge ; clypeus nearly four times as 

 broad as long down the middle, with rather coarse sparse punctures, its 

 anterior margin straight and separated from the mandibles by a rather 

 broad opening; malar space equal to about two-thirds the width of a 

 mandible at base; posterior orbits half the width of the eyes and dis- 

 tinctly receding; ocellocular line about three times the diameter of an 

 ocellus; antennae inserted slightly above the middle of the eyes, 32- 

 jointed in the type, the first flagellar joint about twice as long as thick, 

 following joints shortening gradually; mesoscutum smooth, the 

 median impression slitlike and extending forward to the middle of 

 the mesoscutum, parapsidal grooves deeply impressed anteriorly but 

 effaced on the posterior two-thirds; mesopleural impression deeply 

 crenulate; propodeum rugose with a transverse irregular raised line or 

 carina near the base; stigma of the forewing broad; first abscissa of 

 radius equal to about half the width of stigma ; second abscissa equal 

 to about one and one-half times the first transverse cubitus; radial 

 cell terminating slightly above the extreme wing apex; abdomen 

 short, ovate; first tergite slightly longer than broad and a little wider 

 at apex than at base, with a median carina on the apical half and 

 with sublateral carinae, the space between the sublateral carinae 

 elevated and rugulose, laterad of these carinae smooth; following 

 tergites smooth; ovipositor slightly exserted. Eyes, antennae, most 

 of the pro- and mesopleurae and the propodeum black; head, dorsum 

 of the thorax, the first tergite, and the legs reddish testaceous; 



