220 AMERICAN HYMENOPTERA. 



6. Cheeks not separated from the face by a groove ; metanotum not spined. 



Hypol«'ptiis Foer. 

 Cheeks separated from face by a groove 7. 



7. Metanotum not spined; abdominal segment 3 longest: in 9 segment 2 is 



strongly compressed Neu ratelu!« Eatz. 



Metanotum with a single carina; segment 2 not longer than 3; abdomen of 

 % flat, of 9 compressed more or less from the second or third segment. 



Deleter Foer. 



8. Wings with an areolet ; outer vein of same often translucent white 9. 



Wings without areolet ; rarely the second cubital nervure is a delicate trans- 

 parent line 11- 



9. Face much broader tban high ; parapsidal grooves distinct on anterior half. 



Tapinops Foer. 

 Face vei-y long ; mesonotum without parapsidal grooves 10. 



10. Members of flagellum average broader than long, rarely as long as broad ; 



second abdominal segment with transverse impression before apex (?), 



Atinettis Foer. 

 Members of flagellum all. or nearly all. longer than broad in 9 ; second ab- 

 dominal segment without transverse impression before apex. 



Orthocentrtis Grav. 



11. Pleura- separated from mesonotum by an abbreviated groove; second abdom- 



inal segment has very distinct lunulas; stigma of % large and truncate; 

 ovipositor shields in 9 '^^^ broad ; the section of the areolet between 

 cubital and second recurrent nervure is fully three-fourths as long as 



first section of the marginal nervure * I'haeiiosemus Foer. 



Mesothoracic pleurae not separated by a groove : second segment without 

 lunulse; stigma of % usually lanceolate; guides of ovipositor small; 

 section of areolet between cubital and second recurrent nervures is 

 scarcely half as long as first section of the marginal nervure 12. 



12. Stigma small and long, radms starting near the base.Steiioiiiacrus Foer, 

 Stigma quite broad, radius uniting at middle of stigma. Camerolops Foer. 



BREPHOCTOXUS Foerster. 

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

 Brephoctoims californicns Ashm.. Trans. Amer. Ent. Soc. xxiii. 202. 



"^ _o „im. Black, with face, mouth, scape, tegulse and legs pale yellow ; 

 wino-s hyaline, nervures and stigma pale ; body polished ; metathorax and two 

 basal segments of abdomen granutarly shagreened, second segment somewhat 

 aciculate; longitudinal carinte present on metathorax, apical area large, sub- 

 glabrous and with median carina. 



California (type, coll. Ashmead). 



HYPOI.,EPTUS Foeister. 

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

 Hypoleptus Columbian us Ashm.. Trans. Amer. Ent. Soc. xxiii, 203. 



/r 2 mm. Pale piceous brown, with scape, legs and base of abdomen dirty 



■vellowish white ; wings hyaline, nervures and stigma pale, areolet wanting : body 

 polished, basal segment of abdomen granularly shagreened and with prominent 

 carinaj; longitudinal carinte present on metathorax. 

 Washington, D. C. (type, coll. Ashinead). 



