228 U. S. NATIONAL MUSEUM BULLETIN 216 



3. Genus Zabrachypus 



Figure 293,b 



Zabrachypus Cushman, 1920, Proc. U. S. Nat. Mus., vol. 58, p. 37. Type: 

 Zabrachypus primus Cushman; original designation. 



Front wing 3.4 to 10.5 mm. long; eye conspicuously hairy to almost 

 bare; clypeus broadly lenticular to transversely hexagonal, convex 

 both transversely and longitudinally, distinctly separated from face; 

 epomia strong; mesoscutum subpolished, evenly covered with mod- 

 erately dense hairs; notaulus long, moderately sharp; prepectal 

 carina complete, its dorsal end distant from front edge of meso- 

 pleurum; pleural carina complete; legs very short and stout to mod- 

 erately slender; areolet absent; intercubitus 0.5 to 1.0 as long as 

 second abscissa of cubitus; nervulus briefly postfurcal or sometimes 

 interstitial; discoidella rather strong; first tergite short to moderately 

 long; second to fourth tergites evenly covered with moderately dense 

 hair, finely to rather coarsely punctate, with a pair of weak sub- 

 lateral swellings at their midlength and a weak postmedian trans- 

 verse impression; ovipositor sheath about 1.8 as long as apical depth 

 of abdomen; ovipositor evenly tapered from base to a rather slender 

 point, weakly upcurved (fig. 332, e). 



Zabrachypus includes one Nearctic species and four from the eastern 

 Palaearctic as follows : (Polysphincta) Zabrachypus nikkoensis Uchida 

 1928, (Polysphincta) Zabrachypus tenuiabdominalis Uchida 1941, and 

 an undescribed species each from Japan and China. Z. nikkoensis 

 and Z. tenuiabdominalis have not previously been referred to 

 Zabrachypus (new combinations). The Palaearctic species are rather 

 different from the Nearctic Z. primus in being of more slender build 

 and in having the eyes only inconspicuously hairy. 



1. Zabrachypus primus Cushman 



Figures 323,d; 332,e 



Zabrachypus primus Cushman, 1920, Proc. U. S. Nat. Mus., vol. 58, p. 37; ? . 

 Type: ? , Montana (Washington). 



Front wing of male 3.4 to 4.2 mm. long, of female 3.4 to 5.5 mm. 

 long; body and legs short and stout; eyes rather strongly convergent 

 below, with conspicuous long hairs; clypeus broadly lenticular, 

 separated from face by a strong impression; intercubitus about 0.65 

 as long as second abscissa of cubitus; propodeum evenly convex, 

 with moderate-sized punctures, its median longitudinal carinae 

 represented by faint ridges ; tarsi extremely short, especially in female, 

 the third segment of hind tarsus about 1.6 as long as deep in male, 

 about 0.9 as long as deep in female; abdomen rather broad, with 

 rather coarse, sharp punctures whose interspaces are about 0.6 their 



