HYMENOPTERA. 63 



towards the apex. Pleurae and sternum closely punctured and thickly covered with black 

 hair. Wings deep violaceous, except at the base, where they are narrowly hyaline. Legs 

 thickly covered with black hair; the outer side of the hinder tibiae is smooth and projects 

 in the middle into a triangular tooth ; the inner spur is broadly, triangularly dilated at 

 the base. Abdomen shining; above sparsely punctured at the base, much more closely at 

 the apex. The last ventral segment is bare and smooth and bears a stout tooth on either 

 side, these teeth are straight on the inner side, rounded and narrowed towards the top on 

 the inner; below it is smooth and depressed at the apex. The cubitus beyond the second 

 recurrent nervure is straight, it then turns up straight and obliquely towards the apex 

 of the cellule ; it then turns obliquely backwards, this upper abscissa being shorter and 

 having a more rounded curve ; the second recurrent nervure has the upper abscissa slightly, 

 the lower (and longer) one is more sharply, oblique. The basal area on the median 

 segment is small, opaque, sparsely punctured ; its length is as long as its width at the 

 base. 



