264 U. S. NATIONAL MUSEUM BULLETIN 216 



Seyrig 1932 and of the European Polysphincta picticollis Thomson 

 1888 and P. pulchrator Thomson 1877. These three belong in Zaty- 

 pota, but our notes do not show to which species group. The specific 

 names japonica Uchida and rhombifer Haupt, mentioned above, are 

 new combinations in the genus Zatypota. 



Key to the Nearctic species of Zatypota 



1. Petiolar area of propodeum not completely enclosed by a strong carina and/or 



mesoscutum mat; propodeum entirely mat; discoidella often present . . 2 

 Petiolar area of propodeum completely enclosed by a strong carina and meso- 

 scutum polished; propodeum often polished, at least on basal half; discoi- 

 della never present 10 



2. Lateral lobe of mesoscutum quite polished 3 



Lateral lobe of mesoscutum mat (with micro-reticulation) 6 



3. Mesosternum and mesopleurum largely or entirely fulvous 4 



Mesosternum and mesopleurum blackish 5 



4. Hind coxa ivory white, with a brown area basally above (fig. 324, j) ; hind femur 



ivory white with its base broadly brown and usually with a dorsolateral 

 paler brown stripe in front and another behind (fig. 324,j) ; hind tibia with 



strong fuscous basal marking 2. parva (Cresson) 



Hind coxa ivory white with a fulvous tinge basally, to almost entirely fulvous, 

 without a basal brown area (fig. 324,k) ; hind femur ivory white to fulvous 

 with its apex white, not broadly brown at base (fig. 324,k) ; hind tibia with 

 faintly infuscate basal marking 3. patellata, new species 



5. Third tergite about 0.8 as long as wide, its median rhombic area strongly mat; 



nervulus opposite basal vein 4. favosa, new species 



Third tergite about 0.6 as long as wide, its median rhombic area moderately 

 mat; nervulus distad of basal vein by about 0.5 its length. 



5. exilis, new species 



6. Median 0.4 of mesoscutum with uniformly dense hairs; ovipositor gradually 



tapered from its middle to apex, its apical 0.3 rather stout (fig. 332,j) ; 

 discoidella present; clypeus stramineous apically. 



1. bohemani (Holmgren) 



Median 0.4 of mesoscutum with a few hairs anteriorly, elsewhere almost bare; 



ovipositor abruptly tapered just beyond the middle, its apical 0.3 very 



slender (fig. 332,k) 7 



7. Discoidella present, or rarely absent; clypeus either entirely blackish or mostly 



white 8 



Discoidella absent, or rarely present; clypeus blackish with its apical third 

 stramineous or brown 9 



8. Clypeus blackish; hind tibia fuscous on basal 0.12± (fig. 325, b) ; temple weakly 



convex 6. cingulata, new species 



Clypeus white, infuscate basally; hind tibia whitish on basal 0.12 ± (fig. 325,c) ; 

 temple flat 7. arizonica, new species 



9. Hind tibia with a basal dark band; first trochanter of middle leg of female 



subcylindric, not specialized 8. walleyi, new species 



Hind tibia with a subbasal dark band, its basal 0.12± whitish (fig. 325,d) ; first 

 trochanter of middle leg of female triangularly produced below. 



9. nigriceps (Walsh) 



10. Frontal orbit and face entirely black 11 



Frontal orbit and more or less of face white 12 



