354 AMERICAN HYMENOPTKRA. 



subhyaline, nervures and stigma hrown ; body polished, moderately punctured ; 

 scutellum oval, transversely elevated : metathorax broad, completely areolated, 

 apical median area elongate, largest, and is transversely and coarsely reticulate : 

 abdomen depressed, broad on median segments; gastroceli large, deep and reticu- 

 late; postpetiole broad, polished, sparsely punctured. 



One specimen from Algonquin, 111. (Dr. Nason). 



Eiirylabu<ii coinniodus n. sp. 



%, . — 8 mm. Black, with abdomen beyond extreme base of petiole and legs 

 beyond basal trochanters, rufous; extreme tips of hind tibise fuscous; face, except 

 two submedian lines reaching from antennae to sides of clypeus, tegulfe, spot 

 before and scutellums, brownish yellow; antennte piceous beneath; wings sub- 

 hyaline, nervures brown, stigma yellowish ; head and thorax subpolished. closely 

 punctured ; scutellum somewhat elevated, rounding ; metathorax rugosely punc- 

 tured, carinffi rather small, subspinose; abdomen depressed, rather broad, very 

 closely punctured ; petiole and base of segment 2 rugosely punctate, postpetiole 

 rugosely aciculate. 



One specimen from Washington (Prof. O. B. Johnson). 



Exoiyliis «lakot{eiisis n. sp. 



% . — 7 miu. Black to piceous, with clypeus, mandibles, palpi, prothorax, scu- 

 tellum, legs and 2-3 basal segments of abdomen, rufous; remainder of abdomen 

 and thorax piceous ; tegulse yellow, antennse uniform reddish brown : wings 

 yellowish fuscous, nervures and stigma brown, the latter shorter and more trian- 

 gular than usual and with radius starting back of middle ; areolet complete, pent- 

 angular; parapsidal depressions very large, broad and deep and uniting in a 

 liroad basin before scutellum ; metathorax areolated as usual, but only rugulose 

 and punctured : tergum of petiole with four small, distinct, parallel carinse reach- 

 ing to the apex, two lateral and two median ; legs short and thickset, especially 

 posterior femora and coxse. 



One specimen from South Dakota (Prof. Aldrich). 



Exolytiis acicnlatus n. sp. 



-^ 9 . — 7 9 mm. Black, with mandibles, legs, and more or less of abdominal 

 segments 2 and 3, rufous ; antennte black to piceous with basal portion beneath 

 ferruginous ; tegulse yellow ; apical median area of metathorax long, transversely 

 reticulate; petiole of abdomen slightly inflated behind spiracles and finely, lon- 

 gitudinally aciculate or wrinkled ; wings hyaline, nervures and stigma brownish 

 red ; areolet with outer nervure pellucid or wanting. 



Five males and three females from Illinois (Dr. Nason), New 

 York and Michigan. 



ExoIyttiN glaiicus n. sp. 



'^ 2. —7-10 mm. Black, with mandibles, antenna- at base, legs, and segments 

 2 and 3 of abdomen, rufous ; palpi and tegulte yellowish : metathorax as in acicu- 

 Intus ; abdomen broad, depressed in "^ , in 9 slender, compressed toward apex, 

 ovipositor exserted, curved under; petiole in both sexes long, slender, scarcely 

 perceptibly widening behind spiracles, smooth and polished; wings elongate; 

 hyaline; areolet with outer nervure pellucid. 



One female and two males from Michigan, Illinois and New York. 



