MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPIDiE. 265 



PIESTOPLBURA ForsUr.' 



Hym. Stud. ii,i).U4 (185G); C«<>//«» Ftirst. Im-. rit.,]). 107. 



(Type 1'. tutiUu8 Walk.) 



(PI. XI, Fig. 8, 9.) 



Head larpe, rounded, twice the bre.adth of the thorax, the oeeipnt 

 margined; ocelli 3, in a triangle, the lateral close to the margin of the 

 eye. 



Antennae inserted just above the clypens, 10-jointed in 9 , with a 

 4-jointed club, the pedicel much larger than the funiclar joints, the club 

 joints transverse; in i the tirst and t'-iird funiclar joints are much thick- 

 ened, about as thick as the pedicel, the second, as long as the two i)re- 

 ceding together, spindle-shaped, not especially thickened, club 4-jointed, 

 the joints long, cylindrie, slightly pedicellate, pilose. 



Thorax strongly compressed, 2J times as long as Avide and liighly 

 convex, higher than wide, mesonotal furrows but slightly impressed, 

 obsolete anteriorly, scutellum with a spine or small thorn. 



Front wings pubescent, ciliated, entirely veinless. 



Abdomen long-ovate, 6-jointed and more pointed at apex in the 9 , 

 7-jointed and rounded at apex in S , the second segment very long, 

 occupying fully more than half the whole surface. 



Legs clavate. 



In the shape of the head and the strongly compressed thorax this 

 genus is quite distinct from those that follow. 



Piestopleura maculipes Ashiu. 



Can. Ent., XIX, p. 128 9 (CaHllus): Cress. Syn. Hym., p. 249. 



5. Length, 0.8""". Polished black; antenna' jind legs, rufous; club 

 of antennae 4-jointed, black or brown-black ; pedicel long; funiclar joints 

 small. Head much wider than the thorax. Thorax with indications 

 of furrows posteriorly. Scutellum ending in a small si)ine, subpubes- 

 cent. Metathorax very short, pubescent, with a prominent median 

 keel. Abdomen about as long as the head and thorax together, oblong, 

 the petiole striated, subpubesceut. Wings hyaline. 



Habitat. — Jacksonville, Fla. 



Type iu Coll. Ashmead. 



XESTONOTUS Forster, 



Hym. Sttid., II, p. 107 (1856). _^ 



(Type A", rcfiiiijcns Forst.) 



Head transverse, the occiput margined, the face subconvex; ocelli 3, 

 triangularly arranged, the lateral nearer to the margin of the eye thau 

 to the front ocellus ; eyes oval. 



