266 HYMENOPTERA. 



marginal vein by a distinct transverse fuscous fascia which is obliqued 

 somewhat proximo-caudad ; posterior wings acute at tip, almost ab- 

 ruptly, with but one or two cilia in the midlongitudinal line of the 

 blade near apex, sometimes several more farther proximad ; the long- 

 est marginal cilia of the posterior wing are distinctly longer than those 

 of the fore wing, slender, about twice longer than the mean width of 

 the blade. 



Proximal funicle joint of antennae twice longer than wide, barely 

 shorter than the pedicel ; funicle joints 2 and 3 subequal, a fourth 

 longer, each distinctly longer than the pedicel, yet not very much 

 longer, still slender ; 4 somewhat longer and a little stouter than the 

 preceding joint ; 5 stouter but about of the same length as 4, subequal 

 in length to 3, cylindrical ; 6 and 7 distinctly shorter, subequal, cylin- 

 drical-ovate ; 8 still shorter. The club usual. Pubescence as in doli- 

 chocerus. 



From 3 specimens, f-inch objective. 1-inch optic, Bausch 

 and Lomb. 



Male. — Unknown. 



Described from three female specimens, two of which were 

 found in my personal collection labelled " Arlington, Va., 

 July 6" ; the third specimen was found in the National Mu- 

 seum collections and was labelled " Washington, D. C, office 

 window. C. N. Ainslie, Collector." 



Habitat. — United States : Arlington, Virginia, and the Dis- 

 trict of Columbia. 



Type. — Accession No. 4-4-^238, Illinois State Laboratory of 

 Natural History, Urbana, Illinois, two females in xylol-bal- 

 sam, 1 slide (Arlington, Va.). 



7. Gonatocerus novifasciatus species nova. 



Normal position. 



Female. — Length, 1.05 mm. Large for the genus. 



The same as fasciatus but the stripe across the proximal part of the 

 fore wings is broader and less regular and situated somewhat farther 

 distad, just beyond the apex of the marginal vein, not embracing that 

 apex or just before (proximad) it, as in the other species. Also the 

 marginal vein of the fore wings is decidedly shorter and the proximal 

 funicle joint also, instead of being twice longer than wide and over 

 three-fourths the length of the pedicel, is subquadrate, barely longer 

 than wide (if not wider than long) and not half as long as the pedicel. 

 The posterior wings also diflfer in having a single midlongitudinal 

 line of discal cilia which is complete, extending far proximad. More- 

 over the legs and antennae are decidedly darker, uniformly very in- 



