230 AMERICAN HYMENOPTERA. 



margins of mesonotum, scutellums, line on collar, spot on anterior mesopleurse, 

 spot on lateral apical corners of metathorax, apical margins of abdominal seg- 

 ments, broadest on first and narrowing to the fifth, where they terminate, lemon- 

 yellow ; legs reddish yellow, with coxse and apex of posterior tibite black ; poste- 

 rior part of four anterior femora and all of posterior femora piceous; wings 

 subhyaline. nervures and stigma brown; antennae dark brown; body coarsely 

 punctured ; metathorax and two basal segments of abdomen scabrous. 



Canada (type in Quebec Museum). 



Picroscopus hullensis Prov. {Exenterus), Add. Fauue, 104. 



% . — 6 mm. Black, with anterior orbits, nearly wanting beneath antennae, 

 clypeus, mouth-parts, orbital line beneath, scape beneath, collar, spot beneath 

 tegulse, triangular spot on margins of mesonotum, scutellums, large irregular spot 

 on outer apical corners of metathorax, apical margin of all abdominal segments, 

 much broader on basal one, four anterior legs, except black spot on outer middle 

 femora, posterior trochanters and tibiae and tarsi except apex, yellow ; wings 

 hyaline, nervures and stigma yellowish at base; abdomen deeply punctured on 

 two basal segments; petiole with carinae uniting near the apex ; second segment 

 with distinct oblique grooves; next two segments constricted at base: gastroceli 

 large, yellowish. 



Described from type specimen, which is in the coll. of W. H. 

 Hai'rington. 



DIABORIJS Foerster. 

 (Synop. der Fam. und Gatt. der Ichneumonen, 1868.) 

 Thorax mostly or entirely black. 



Abdomen black with median yellow apical spots. 



Posterior coxae and face black inaculiveiitri!* Ashm. 



Postei'ior coxae and legs ferruginous; face yellow. 



Scutellum yellow; wings subhyaline; oblique grooves narrow on second 



abdominal segment siiiiilis n. sp. 



Scutellum with tip yellow; wings hyaline; oblique grooves shallow. 



iguipe.*» n. sp. 

 Posterior coxae and face yellow; posterior tibiae dusky with a more or less 

 distinct pale annulus; scutellum, except tip, black. inediatus Cress- 

 Abdomen black with both median spots and apical lines on margin of abdominal 

 segments; scutellum and posterior coxae yellow. 



■lebraskeiisis n. sp. 



Abdomen mostly rufous; thorax black ; legs rufous oriiatus Walsh. 



Thorax entirely rufous with yellow markings. 

 Head color of thorax; cubito-discoidal vein gently curved, not broken, and 



without stump of vein dorsalis Cress. 



Head black; cubito-discoidal vein broken and with a short stump. 



iiigruoeplialus u. sp. 



Diaborus inaculiveiitris Ashm., Trans. Am. Ent. Soc. xxiii, 197. 



% 5 .-— 5-7.5 mm. Black, with anterior orbital lines, clypeus, mouth-parts, 

 cheeks beneath, tegulae, line in front, anterior coxae generally, four anterior tro- 

 chanters and median spots more or less merged into narrow apical lines on the 

 apical portion of the abdominal segments yellow ; antenna:' dark brown ; poste- 

 rior coxae and trochanters and middle coxae black ; remainder of four anterior 



