MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID.E. 291 



Distinguislied at once by the sliape of the anteunu', and the. Hat or 

 subcouvex scutelluin, wliicli is not foveated at base, beinj;- separated 

 from the mesouotum by a. delicate transverse line. 



Forster indicated no type. Tiionison's detinition of the j^enus is quite 

 different from mine. 



Anopedias error Fitch. 



(PI. XII, Fig. 7, 9.) 



rhilygashr error Fitch, Sixth N. Y. Rep., }>. 76, PI. l.Fij;-. 4. 



$ 9. Length, 1 to 1.2' , Polished black, impunctured. Head 



transverse, as wide as the thorax across from wing to wing, the vertex 

 posteriorly polished, without trace of aciculations. AnteniuL^ lOjointed, 

 black, the flagellum subclavate; pedicel pale at tip, as long as the 

 first two funiclar joints together ; first funiclar joinr minute ; the second, 

 third, and fourth nearly equal ; club i-jointed, very slightly thicker than 

 the funicle, ail tlie joints distinctly longer tban wide, the first the short- 

 est, the last the longest. Thorax long-ovate, polished, impunctured, 

 the parapsidal furrows very faint; scntelluni tlattened, or subconvex, 

 separated from the niesonotum by a very delicate, transverse, impressed 

 line; mesoplenra smooth ; metapleura strongly sericeous. Teguhe black. 

 Wings hyaline, iridescent, pubescent and fringed. Legs brown-black, 

 the trochanters, tip of anterior tibia', and all the tarsi paler. Abdomen 

 oblong-ovate, polished, very slightly longer than tlie thorax, the petiole 

 coarsely grooved, the second segment with some longitudinal stria* at 

 base. 



The male is smaller, the abdomen oval, shorter than the thorax, while 

 the autennpe have a 6-jointed, slightly pedicellate club. The first 

 funiclar joint is very minute, rounded, closely connected with the sec- 

 ond, the second a little curved and thickened, truncate at tip; the first 

 club joint is the smallest, the others very gradually increase to the last, 

 oblong oval in shape, the last being larger and thicker, fusiform, and 

 nearly twice as long as the preceding. 



Habitat. — New York, Washington, I). (\, Arlington, Va., and La- 

 fayette, Ind. 



•Specimens in National Museum, 



Described from $ and 9 specimens, reared June 14, 1884, by Mr. F. 

 M. Webster, from Diphms tritici. 



I had previously ideutified a species of Polygnotus as Flat ii<j aster error 

 Fitch, but a more careful examination of Fitch's figure and description 

 satisfies me now that I was mistaken, and that the species described 

 here is really his P. error. 



The identification by Dr. Fitch of the fragments of an insect sent to 

 him by Mr. Herrick and reared from an Hemipterous egg {N((his), as 

 his Platyr/aster error, was certainly erroneous, since it was undoubtedly 

 nothing but a species of Teleitoiitus, as Mr. L, O. Howard has already 

 pointed out. 



