AMERICAN HYMENOPTERA. 433 



wide and longer than the hind coxae ; the rest of the abdomen 

 is obliquely turned upwards. Legs normal, as is also the 

 alar neuration. The apical abdominal segments are hidden 

 by the second. The temples are short. Ocelli in a triangle. 

 The form of the mandibles I cannot make out, but they appear 

 to be shorter than usual. 



The type of the genus is smaller and more slenderly built 

 than usual for the group. It comes nearest to Orascma, from 

 which it may be known by the more elongated antennal joints, 

 by the more elongated ab- dominal petiole and by the greatly 

 elongated second abdominal segment which envelopes all the 

 others, while in Orasema it is only as long as the others 

 united. 



17. Semora xaiithopus sp. n. 



Black, the head and thorax largely tinged with brassy tints, the scape 

 of antennas yellow, the flagellum black ; the legs yellow, the coxae dark 

 blue ; wings clear hyaline, the nervures black. 9 . Length 3 mm. 



Head and thorax closely, finely, but distinctly punctured, almost 

 bare, the abdomen very smooth and shining, the head, if anything, 

 more strongly punctured than the thorax, the sides of the face finely 

 marked with curved striae. Metanotum finely closely transversely 

 striated. Base of femora infuscated, the outerside of the hinder streaked 

 with blue. There is a large smooth, ovoid tubercle below the fore 

 wings; below the hind wings is a raised part, rounded above, below 

 bordered by a furrow. 



Mendoza, November. 



EURYTOMIN.E. 



Eurytomini. 

 HEIMBRA gen. n. 



Antennae 10-jointed, but the last joint may be composed of 

 more than one joint; the scape does not reach to the ocelli, 

 the pedicle wider than long, transversely ovoid, the follow- 

 ing joints transverse, wider than long, the last conical, more 

 than twice wider than long, as long as the preceding two 

 united. Parapsidal furrows deep. Scutellum large, fully 

 one-half longer than it is wide at the base, from which it 

 becomes gradually narrowed towards the apex ; it projects 

 over the metanotum, its apex reaching beyond the base of 



TRANS. AM. ENT. SOC, XXXV. (55) DECEMBER, 1909 



