116 ME. W. H. ASHMEAD ON THE PAEASITIC HYMENOPTEEA 



Second abdominal segment with two transverse 

 sutures. 

 Pale ferruginous with fuscous markings ; legs pale 

 luteous. 

 First transverse suture of the second segment 

 at the middle, the second at the apical one- 

 third of the upper half; first segment and 

 basal half of the second, and the bottom of 

 the second suture striated or aciculated; 

 the rest of the abdomen, except some faint 

 aciculations at the bottom of a transverse 

 suture on the third segment, smooth, 

 poUshed; ovipositor as long as the ab- 

 domen H. pallidipes. 



First transverse suture of the second segment 

 curving inwardly at sides; the second su- 

 ture straight, close to the apex of the 

 segment ; the third, fourth, and fifth seg- 

 ments with dark transverse bands ; ovipo- 

 sitor much longer than the abdomen ; first 

 segment and the second, except the apex, 



striated H. longicaudus. 



3. Second abdominal segment shorter than the first, 



or equal 4 . 



Second abdominal segment longer than the first. 

 Suture of second segment at about one-half the 



length of the segment, not arcuated. 

 Black, the head reddish, legs and two basal 

 joints of antennae white ; third abdominal 

 segment with a broad transverse suture 

 before the middle, the basal portion very 

 faintly and the broad suture distinctly 

 aciculated, the apical portion and the fol- 

 lowing segments smooth, polished; ovi- 

 positor half the length of the abdomen. ... H. nigrescens. 

 4. Suture of the second segment at about one-third 

 the length of the segment, arcuated, in middle 

 nearly obsolete. 

 Pale ferruginous, head, legs, and apex of abdo- 

 men luteous or white ; first abdominal 

 segment and the basal two-thirds of the 

 second striated, the third showing some 

 faint aciculations at base ; the following 

 segments rarely slightly punctate basally, 

 usually smooth H. qucestor, Hal. 



