MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID^. 265 



PIESTOPLBURA Fiirstei. 



Hym. Stud, ii, p. 144 (185G) ; Catilhis Foist, loc. cit., p. 107. 



(Type /'. CatUlus Walk.) 



(PL XI, Fig-. 8, 9-) 



Head larg^e, rounded, twice the breadth of the thorax, the occiput 

 margiued; ocelli 3, iu a triangle, the lateral close to the margin of the 

 eye. 



AntenufE inserted just above the clypeus, 10-jointed in 9 , with a 

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

 joints transverse; in S the first and third funiclar joints are much thick- 

 ened, about as thick as the pedicel, the second, as long as the two pre- 

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

 the joints long, cyliudric, slightly pedicellate, pilose. 



Thorax strongly compressed, 2i times as long as wide and highly 

 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 , 

 T-jointed and rounded at apex in $ , 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 Ashm. 



Can. Ent., XIX, p. 128 9 {Caiillus): Cress. Syn. Hym., p. 249. 



9. Length, 0.8""". Polished black; antennne and legs, rufous; club 

 of antenn.ne 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 spine, subpubes- 

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

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

 the petiole striated, subpubesceut. Wings hyaline. 



Habitat. — Jacksonville, Fla. 



Type in Coll. Ashmead. 



XESTONOTUS Forster. 

 Hym. Stud., ii, p. 107 (1856). 

 (Type A', rcfuhjeiis Forst.) 



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

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

 to the front ocellus ; eyes oval. 



