PHYTOPHAGOUS AND PARASITIC HYMENOPTERA. 91 



curved, crenulated ; there is an oblique furrow on the base of 

 the second segment ; the base of the fourth and fifth segments are 

 closely striated. 



The metapleurae and base of abdomen are yellowish ; the man- 

 dibles and ocellar region are black. 



Tropohracon, gen. nov. 



First abscissa of radius slightly longer than the second, both 

 together as long as the first transverse cubital nervure. Recurrent 

 nervure widely distant from the apex of the cellule. Second 

 cubital cellule much narrowed in front, being there less than 

 half the length it is posteriorly ; apical abscissa four times the 

 length of the basal two united, reaching to the apex of the wing. 

 Parapsidal furrows deep, clearlj^ defined, not reaching to the 

 apex. Basal two joints of flagellum equal in length. Last joint of 

 hind tarsi longer than the third, as long as the first. First segment 

 of abdomen short, broader than long, the sides and top of the 

 apical slope margined. 



Abdomen coriaceous, short, broad ; the area on the second seg- 

 ment large, reaching to the apex ; the ovipositor short, not much 

 longer than half the length of the abdomen. 



This genus should be readily known by the recurrent nervure 

 being received at a distinct distance from the apex of the cubital 

 cellule, by the deep, clearly defined parapsidal furrows, keeled 

 basal slope of first abdominal segment, by the short basal two 

 abscissae of radius, and by the second cubital cellule being narrowed 

 in front and short. Hahrohracon, Ashm., seems to be its nearest 

 ally, but inter alia, that genus should be known by the "basal joint 

 of hind tarsi being about the length of the third, shorter than the 

 second," while in my genus it is double the length of the third 

 and much longer than the second. The parapsidal furrows are 

 much deeper and more clearly separated than usual. 



28. — Tropohracon luteus, sp. nov. 



Luteous, the antennae black, the hind tibiae and tarsi inf uscated ; 

 wings hyaline, highly iridescent, the nervures and stigma black ; 

 the recurrent nervure received shortly beyond the middle of the 

 cellule, ?. 



Length 4 mm.; terebra 1 mm. 



Pundalu-oya, March. 



Face shining, aciculated, covered with a white pile ; a distinct 

 curved furrow over the clypeus. Malar space long, two-thirds 

 of the length of the eyes. Front and vertex smooth. Temples 



O 8(17)05 



