MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID.E. 189 



yellow. Aiiteuniu 12- jointed, tilifoiiu, black; first fuiiicle Joint (> times 

 ass loni; as thick; second slightly shorter; third still shorter; fourth and 

 followiuiL;- longer than third, but not <iuite as long- as the second. Post- 

 scutelhir spine long, acute. Angles of metathorax acute. Wings sub- 

 hyaline, the nervures pale brown. Abdomen broadly oval, black, shin- 

 ing, the first and second segments and the third, on disk, longitudi- 

 nally striated. 



Habitat. — Jacksonville, Fla. 



Type in Coll. Ashmead. 



Described from a single specimen. 



Prosacaiitha melanopus, sji. iiov. 



9. Length, 1,4""". Black, shining; face perfectly smooth; thorax 

 and scutellum faintly microscopically punctate, but not sufiicient to 

 destroy the smoothness or luster of the surface. Mandibles dull, 

 rufous. AntennjL^ 12-Jointed, short, black; scape long, i)edicel two- 

 thirds the length <»f the first funiclar Joint; the first and second funic- 

 lar joints nearly equal, the second the smaller; third and fourth, mi- 

 nute, transverse; club G-jointed, as long as the pedicel and all the 

 funiclar joints together; the Joints transverse, ab(uit twice as wide as 

 long. Wings fuscous. Legs black; tip of trochanters and base of 

 tarsi, piceous or brownish. Abdomen as long as the head and thorax 

 together, smooth, shining; the petiole and first segment striated. 



Habitat. — Ottawa, Canada. 



Type in Coll. Ashmead. 



Described from a single specimen received from 3Ir. W. Hague Har- 

 rington. 



Prosacautha pennsylvanica, si), uov. 



9 . Length, 1"'"'. Black, shining, sparsely pubescent, the ])unctua- 

 tion of the thorax very fine and faint. Antenn;e 12- jointed, black, not 

 extendiug beyond the base of abdomen; first funiclar Joint scarcely as 

 long as the pedicel, the second shorter, the third and fourth minute, 

 transverse. Wings hyaline, strongly iridescent, with a faint fuscous 

 tinge. Legs brown-black, trochanters, knees, tips of tibia' and base 

 of tarsi yeHowish. Abdomen broadly oval, not as long as the head 

 and thorax together, smooth, ])olished, with a fine pubescence; the 

 petiole longer than thick, striated ; the second segment with some stria*, 

 at base. 



Habitat. — rennsylvania. 



Type, 9 in Berlin Museum. 



Described from a single specimen labeled "Penna. Ziuunerinann'." 



Piosacantha vitaheusis, sj). nov. 



9. Length, 1.5""". Black; thorax and scutellum iugoso]»unctate, 

 opaque; head almost smooth, shining, the face with delicate stri;e 



