26 AMERICAN HYMENOPTERA. 



12. Glaucous, to flavous with distinct ferruginous markings. 



chilensis Spin. 

 Not glaucous, fulvous to ferruginous or luteous 13. 



13. Flavous to light or dark fulvous, eyes black 14. 



Luteous (eyes flavous) or testaceous 15. 



14. Face broadly projecting, with distinct longish tubercle below an- 



tennae ancyloneura Cam. 



Face not broadly projecting, with distinct longish tubercle below 

 antennae bilineatus Say. 



15. Discocubital vein twice angularly broken, stigma fuscous. 



biang^ularis Tasch. 

 Discocubital vein once angularly broken, stigma luteous 17. 



16. Eyes small, distant from base of mandibles abnormis Felt. 



Eyes medium, body glaucous to bright straw-yellow, marked with 



ferruginous cliilensis Spin. 



17. Face broadly projecting flavo-orbitalis Cam. 



Face not broadly projecting cliiriquensis Cam. 



Ophion costale Cress. 

 Ophion costale Cresson, Proc. Acad. Sci. Phila., p. 366, 9 , Cal....l878. 



Syn. Hym. N. A., p. 200 1887. 



" costalis Dalla Torre, Cat. Hym., Ill, p. 189..' 1901. 



" costale Felt, N. Y. State Mus., Bull. 76, p. 123 (Nineteenth 



State Ent. Rept.) 1903. 



" gilletti Felt, Idem, p. 123, Col 1903. 



" costalis Szepligeti, Gen. Ins., Hym., 341"^ Fasc, p. 32, n. 



116 1905. 



Fulvo-ferruginouSy wings subhy aline, thoracic sutures black, eyes 

 small, distant from, base of mandibles , posterior ocelli connected with 

 the tops of the eyes by a deep black furrow, nervellus broken well above 

 the middle. 



Length, 9-14 mm. ; wing, 8-9 mm. ; spread, 18-19 mm. ; antennae, 

 10 mm. 



Fulvo-ferruginous, varied with black; head large; eyes small, only 

 slightly emarginate, distant from the base of the mandibles ; ocelli 

 small, the posterior twice their width from the tops of the eyes, but 

 connected with them by two deep black furrows ; antennae dark ferru- 

 ginous, shorter and thicker than usual ; antennal fossa ringed with 

 dark brown or black and with a distinct black hollowed area just 

 above ; clypeal foveae and base and tips of mandibles black ; a weak 

 median keel extends from between the eyes to the base of the clypeus ; 

 face slightly swollen, clothed with fine short pubescence ; shining be- 

 hind the eyes, in front closely punctured, as in the clypeus ; labrum 

 large and evenly rounded. 



