516 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.63. 



14. Wings very dark; lateral ocellus about twice as great in diameter as length of 



ocell-ocular line audax {Qressony 



Wings hyaline or very faintly dusky; ocelli distinctly either larger or smaller. . 15 



15. Clypeus much more than half as long as interfoveal line, strongly rounded at 



apex; diameter of lateral ocellus scarcely as long as ocell-ocular line 16 



Clypeus not or but little more than half as long as interfoveal line, very weakly 

 rounded at apex Ig 



16. Wings clear hyaline, venation strong; notauli and scutellum marked with yel- 



^^'^■- - bilineaius, new species. 



Wings milky hyaline ; notauli and scutellum black _ 17 



17. Venation, except stigma, very pale; clypeus and face convex; eyes deeply con- 



vex; temples flattened, sloping; vertex abruptly sloping backward from 

 ocelli, not elevated above ocelli; petiolar area little longer than areola. 



vierccU (Cockerell). 



Venation dark; clypeus and face flat; eyes shallowly convex; temples strongly 



rounded; vertex beliind ocelli elevated above ocelli; petiolar area nearly 



twice as long as areola hyalinipennis (Cresson). 



18. Tergites beyond second varied with black, red, and yellow, occasionally almost 



entirely black, with only the third reddish and the apical ones narrowly 

 tipped with yellow; orbits narrowly yellow, broadly interrupted below and 

 above antennae, not swollen above antennae; diameter of lateral ocellus 



shorter than ocell-ocular line gallaecola, new species. 



Tergites beyond second entirely red; orbits broadly yellow, complete except for 

 brief interruption opposite ocelli, swollen above antennae 19 



19. Eyes and ocelli very large, former much longer than width of face and parallel 



within, malar space and ocell-ocular line very short orbitalis (Creseon). 



Eyes and ocelli small, former about as long as width of face and divergent below, 

 malar space and ocell-ocular line long .obereae (Viereck). 



CREMASTUS (CREMASTUS) LONGIGENALIS, new species. 



Female. — Length 10 mm., antcmiae 6 mm., ovipositor 1.7 mm. 

 Head in front view subtriangular, the malar space distinctly longer 

 than basal width of mandible, clypeus long and subacutcly romided 

 at apex, the suture weak; face longitudinally elevated in middle, 

 finely and densely punctate, slightly wider than greatest eye-length; 

 temples nearly flat; occipital carina broadly interrupted above; post- 

 ocellar hne distinctly longer than ocell-ocular lino and nearly twice 

 as long as diameter of a lateral ocellus. Thorax, especially propo- 

 deum long, the latter gradually sloping from base to apex and reach- 

 ing distinctly beyond middle of hind coxae; pronotum laterally pol- 

 ished above, irregularly rugulose below; mesoscutum and scutellum 

 finely opaquely punctate, notauh deep and more strongly sculptured, 

 broadening posteriorly; prescutum prominent; meso pleura with lon- 

 gitudinal impression transversely rugulose, the area above pohshed 

 and that below finely punctate, as are also the sternum and meta- 

 pleura; propodeum with areola and petiolar area not separated, all 

 dorsal and lateral areas except basal areas transversely rugulose, 

 basal and pleural areas punctate; legs slender, hind basitarsus about 

 three-fifths as long as tibia and about as long as next three tarsal 

 joints together; stigma loss than half as wide as long, radius originat- 



