32 HYMENOPTERA. 



Marginal vein gradually dilated distad, broad, about twice the length 

 of the short thick neckless stigmal vein which is turned nearly at right 

 angles into the wing disk, and which bears a short uncus half-way 

 up its outer (distal) margin ; submarginal vein broadened abruptly 

 slightly distad of its proximal half, where it changes angle to extend 

 to the marginal vein, twice longer than the latter, its thickened por- 

 tion being subequal in length to the marginal vein. Caudal wings 

 with the caudal margin slightly convex, the cephalic margin nearly 

 straight, the blade moderately broad, narrowing distad to an obtuse 

 point, the cephalic marginal cilia short and uniform, the caudal fringes 

 moderately long, lengthening distad, the longest not quite as long as 

 the greatest wing width. Discal cilia of posterior wings arranged in 

 three principal longitudinal lines about equidistant and equally distinct 

 and a fourth shorter but similar line of cilia between the second and 

 third lines of the equal three ; this shorter line extends from the region 

 opposite the apex of the marginal vein to slightly more than half- 

 way to the wing apex ; none of the lines are especially near the wing 

 margins. 



Club of antennae 4-jointed, pointed conic-ovate, widest at the second 

 joint, the first and third joints subequal in length, the first somewhat 

 longer, both joints subquadrate, the second joint shorter by at least a 

 third, wider than long, the fourth or terminal joint conical, nearly as 

 long as the third ; pedicel conical ; scape normal, cylindrical. Pubes- 

 cence sparse, long. 



From 2 specimens, §-inch objective, 1-inch optic, Bausch 

 and Lomb. 



The male is unknown. Described from two female speci- 

 mens mounted on a single slide in balsam received through 

 the kindness of Dr. L. O. Howard and bearing the following 

 label: " Parasite bred from apple twigs infested with y^.s^/- 

 diohis perniciosus. Charlottesville, Va. Rec. Apr. 8, '95." 



Habitat. — United States : Virginia (Charlottesville). 



7>/^^.— Type No. 13,395, United States National Mu- 

 seum, Washington, D. C, 2 9 's in xylol-balsam, 1 slide. 



7. UFENS genus novum. (Fig. 10.) 

 Normal to the subfamily. Fore wings with the venation 

 not forming a bow. 

 Normal position. 



Female. — Head normal, the antennae inserted slighty ventrad 

 of the middle of the face and slightly dorsad of the ventral ends 

 of the eyes their bulbs over their own widths apart, the vertex 



