MONOGRAPH OF THE NORTH AMERICAN PROPTOTRYPID^. 55 



Abdomen obloug ovate, smooth. 



Legs short, the anterior femoia especially stout; elaws strongly 

 eurved, <lilated at base. 



A genus described from Australia and unknown to me. Prof. West- 

 wood further describes the "maxilhe as minute, terminating in 3 

 ciliated lobes; the mentum minute; the labium mijuite, membranaceous, 

 hairy." The closed marginal cell and the two discoidal cells readily dis- 

 tinguish the genus from all others. 



SIEROLA Cameron. 



Trans. Lond. Ent. Soc, 1881, p. 556 



(Type S, testaceipes Cam.) 



Head oblong. 



Antennse 13-jointed, not much longer than the head; the scape 

 thicker than the other joints and as long as the following, the third 

 and fourth slightly longer than the succeeding and produced beneath 

 on the longer side; remaining joints not much longer than broad, dis- 

 tinctly separated from each other. 



Palpi (?). 



Mandibles (?). 



Thorax (?). 



Front wings with a stigma and a prostigma, the two being separated 

 by a hyaline space, costa thickened in front of the stigma; radial cell 

 completely closed; two humeral cells unequal and closed; from the 

 upper end of the lower (and smaller) cellnle there proceeds a small 

 oval cellule, which is united to the prostigma by a short thick nervure, 

 so that the upper humeral cellule is thus completely closed. From 

 the end of the radial cellule runs to the edge of the wing a white 

 spurious vein; another runs in the same direction from the small oval 

 cellule above mentioned, the two being united bj' a cross nervure half- 

 way between the radial cellule and the apex of the wing; another 

 spurious vein runs from the lower humeral cellule to the bottom of the 

 wing. 



Abdomen longer than the head and thorax, the third and fourth 

 segments contracted in the middle at the junction; in length subequal; 

 the last is acuminated. 



Legs as in Periaemus. 



A genus unknown to me and not yet recognized in N^orth America, 

 the type, S. testaceipes Cameron, coming from the Sandwich Islands. 

 The species described by me as such, 8. macnUpennis, Entomologica 

 Americana, vol. iii, p. 75, is a peculiar little braconid belonging to the 

 subfamily Euphorintv, and will luobably form the type of a new genus. 



According to Cameron: "This genus diflfers from all the genera of 

 the Bethylloidte in having the radial cellule completely closed and in 



