60 [January 



the first much the largest, irregularly shaped, the second elongate-sub- 

 quadrate, about one-half the size of the first. Legs long and slender; 

 coxae elongate, robust, the posterior pair much the longest; trochanters 

 nearly as long as the coxa? ; femora long and slender, the anterior pair 

 somewhat recurved, the two posterior pair slightly thickened towards 

 the tips; tibiae slender, gradually thickened towards the tips, the two 

 anterior pairs about as long as their femora, the posterior pair stouter 

 and much longer than their femora; tibial spurs rather long, subequal, 

 robust ; tarsi slender, the posterior pair rather stout at base, the first 

 joint as lon»- as the remaining joints taken together, which are gradually 

 shorter towards the tip; claws small, stout at base, suddenly hooked and 

 acute at tip, pulvilli small and pubescent. Abdomen elongate, slender 

 at base, and gradually thickened towards the tip, which is broader and 

 subcompressed in the 9 ) first segment long and subcylindrieal, slightly 

 thickened at tip. with a stout tubercle on each side just before the 

 middle ; second and third segments together rather longer than the 

 first, somewhat depressed; remaining segments short, compressed in the 

 9 j and rather depressed in the S ; ovipositor of the 9 long. 



This genus belongs to the Endodontes of Wesmael, which have the 

 teeth of the maudibles directed inwardly, and the maudibles meeting 

 together when shut; but it cannot be referred to any of the four divi- 

 sions enumerated by him. It agrees with the Areolarii in having the 

 head transverse, the clypeus entire and the vertex emarginate behind, 

 but the second submarginal cell of the anterior wings is moderately 

 large. The neuration of the wings is similar to that of Bracoii, except 

 that the first submarginal cell is larger, of an irregular pentagonal shape, 

 while the second is smaller and not so long as in the latter genus. 



Chaonia xanthostigma, n. sp. 



Female. — Elongate, slender, dull honey-yellow; head pale yellowish, 

 shining; clypeus slightly prominent, entire; mandibles fuscous at tips; 

 palpi pale yellowish; antennae longer than the body, very slender, espe- 

 cially so at tips, dark fuscous, two basal joints dull yellowish. Thorax 

 narrow; prothorax dull yellowish, narrow in front, broader on each side, 

 extending back to the tegulre ; mesothorax dark fuscous, shining, with 

 the lobes very prominent, especially the middle one. the sutures indis- 

 tinctly crenulated and paler; scutellutn dull honey-yellow; pleura large, 

 fuscous, shining; metathorax fuscous above, pale on the sides, covered 

 with irregular transverse striae ; tegulae yellowish. Wings subhyaline. 

 slightly iridescent, tinged wiMi pale fuscous towards the apex; ncrvures 

 fuscous, stigma large and orange-3'ellow; neuration much as in Bracon. 



