1893.] NATURAL, SCIENCES OF PHILADELPHIA. 479 



subhyaline, nervures black ; face and clypeus, sides of thorax and 

 abdomen, more or less, with silvery pile. Length 6 mm. 

 New York ; Colorado. 



MISCOPHUS Jurine. 

 Miscophus Jur., Nouv. meth. class. Hym. p. 205; Kohl, 1. c. p. 218. 



Head wider than the thorax; mandibles strongly emarginate on 

 outer edge, not toothed within and with an acute tip; antennse fili- 

 form, at their insertion rather widely separated and placed immediately 

 behind the clypeus, in the male shorter and thicker; eyes converg- 

 ing but little to the vertex, or not at all; ocelli regular and distinct, 

 and are placed before the line which one may imagine drawn across 

 the vertex from one posterior orbit to the other, and form a triangle; 

 the top of the pronotum lies but little or not at all below the level of 

 the dorsulum; marginal or radial cell lanceolate, not appendiculate, 

 its size varying in the different species; two submarginal cells, the 

 second of which is petiolated and receives the second recurrent 

 nervure, the first recurrent nervure is received by the first submar- 

 ginal cell near its apex; cubital vein of hind wings originating far 

 beyond the apex of the submedian cell; armature of the legs very 

 variable, in some species with a well developed tarsal comb, in others it 

 is short and inconspicuous; middle tibiae one spurred; pul villi medium ; 

 metathorax generally longer than broad; last segment in 9 conical, 

 in the $ truncate- conical, both sexes without pygidial area. The $ 

 differs further from the 9 in the thicker antenna?, the feebler and 

 shorter tarsal comb and the obtuse apical segment. But one species 

 has as yet been found in the United States. 



M. americanus Fox. 



M. americanus Fox, Ent. News, I. p. 138, 9 ; ibid, II. p. 190, $ . 



9 . — Clypeus seemingly divided to three parts or lobes, the mid- 

 dle one of which is largest, convex, its anterior margin rounded and, 

 as well as the other lobes with a transverse impressed line or furrow 

 anteriorly just behind the anterior margin which gives the latter the 

 appearance of being reflexed; front having the appearance ot being 

 exceedingly finely granulated, with an impressed line extending from 

 fore ocellus down to the insertion of antenna?; distance between hind 

 ocelli decidedly greater than that between them and the nearest eye- 

 margin; inner eye-margins distinctly though not very strongly 

 converging to the vertex; antennae rather long, filiform, the 

 the first joint of the flagellum about one- quarter longer than the 



