268 HYMENOPTERA. 



what shorter in this species and uniform in color. The posterior wings 

 differ in that in the midlongitudinal line from the apex there is a single 

 line of cilia (seven or eight cilia). Proximal tarsal joints longer than 

 in rivalis. 



Trochanters, knees and tips of tarsi pallid ; tip of abdomen suffused 

 more or less with pallid ; posterior wings hyaline, their longest mar- 

 ginal cilia much longer than those of the fore wing. Otherwise as in 

 rivalis. 



Antennae 11-jointed. Proximal and distal funicle joints shorter the 

 latter slightly longer and distinctly broader, ovate ; both slightly shorter 

 than the pedicel ; funicle widening distinctly at joint 5 ; 2 slightly 

 longer than 1, subequal in length to the pedicel ; 3 and 5 longest, 4 

 slightly shorter than 3 ; 6 slightly shorter than 5, subequal to 7. Club 

 equal to joints 2, 3 and 4 of the funicle, similar to that in rivalis. 



From 1 specimen, f-inch objective, 1-inch optic, Bausch 

 and Lomb. 



Male. — Unknown. 



Described from a single female specimen captured on the 

 window of a stable at Litchfield, Illinois, July 13, 1910. 



Habitat. — United States : Litchfield, Illinois. 



Type. — Accession No. 44^,239, Illinois State Laboratory of 

 Natural History, Urbana, Illinois, one female in xylol-balsam. 



9. Gonatoceriis latipennis species nova. 



i^/a/^.— Length, 1.30 mm. Large. 



Allied with dolichocerus but differing in having a somewhat broader 

 fore wing with the marginal vein shorter than in that species ; other- 

 wise it is nearly similar, differing colorationally in that the trochanters 

 and knees of the legs are less noticeably pallid and the wings perfectly 

 hyaline. The fore wings at their widest blade portion bear about from 

 forty-five fo fifty longitudinal lines of discal cilia (in dolichocerus only 

 about from twenty-five to thirty-one or two); the posterior wings 

 are nearly similar to those in the Ashmedian species, but their margi- 

 nal cilia (caudal margin) are longer. Another noticeable difference 

 (though which may be more apparent than real) is that in this species 

 the discal ciliation of the fore wings terminates abruptly proximad be- 

 fore attaining the marginnl vein, thus the wing is naked caudad of the 

 venation, whereas in dolichocerus this ciliation is projected triangularly 

 proximad, the cilia being present caudad of the venation. 



Antennae 13-jointed, filiform, the joints of the flagellum cylindrical 

 and longitudinally striate and with the exception of the discal joint, 

 acute or spined at the disto-lateral angles. Scape and pedicel normal ; 

 first funicle joint very much longer than the small, triangular pedicel, 

 somewhat shorter than the second funicle joint ; the latter somewhat 



