162 AMERICAN HYMENOPTERA. 



Structure entirely like O. pugillator but three times as small, and 

 slender. Antennae porrect, black, Head black, mouth whitish. 

 Thorax immaculate black ; abdomen slender, falcate, incrassate be- 

 hind, red, with dorsum black ; ovipositor exserted the length of the 

 abdomen, with a shorter double sheath. Wings short, white; feet 

 ferruginous. 



The length of the ovipositor, " extending the length of the 

 abdomen," seems to place this in a genus outside this tribe. 



Opliioii flavicliis Br. 



Ophion flavidus Brulle, Hist. Nat. Ins. Hym., IV, p. 143, n. 12.... 1846. 



Dalla Torre, Cat. Hym., Ill, p. 190 1901. 



" " Szepligeti, Gen. Ins., Hym., 34meFasc., p. 31, 



n. 99 1905. 



Flavid, with abdomen and base of aniennce rufous ; scutellum flav- 

 ous ; metathorax with two arcuate lines. 



Length, 20 mm. 



It is yellowish, with the antennae, feet and underside of the abdomen 

 reddish -yellow. The largest part of the abdomen is brown, especially 

 below, and the edge of the segments. The face is more or less red- 

 dish in the middle ; the head and scutellum are in general yellow. 

 The mesothorax shows three more or less distinct brown lines. The 

 nervures of the wings are brown, the stigma is yellow, the median 

 vein (discocubital) is twice bent, the first angle is more or less pro- 

 longed on the inside. The metathorax little or not at all rugose, show- 

 ing a shallow longitudinal groove in the second region, and a slightly 

 arched, projecting carina more or less interrupted in the middle, 

 running parallel to the edge of the first region. This line is a little 

 stronger in the middle and on the sides. 



Type. — Location unknown. 



This description seems to contain no distinctive char- 

 acters. 



Distribution. — Brazil. 



Ophion flavorufus Br. 



Ophion ftavo-rufus Brulle, Hist. Nat. Ins. Hym., IV, p. 144 1846. 



" flavorufus Dalla Torre, Cat. Hym., Ill, p. 191 1901. 



" " Szepligeti, Gen. Ins., Hym., 34me Fasc, p. 31, 



n. 102 1905. 



Ferruginous ; head a7id scutellum flavous, face ferrugi7ious ; meta- 

 thorax rugose, bilineate. 

 Length, 20 mm. 



