pepsestae: tribe pepsini 



53 



This species occurs in the Upper and Lower Sonoran faunas of the 

 South v/est, and has been taken also in southern Idaho. Adults occur 

 mostly from July to September. 



2. Priocnemioides aiistriniis (Banks), new combination 



Forewing of male 15 to 21 mm. long, of female 18 to 22 mm. long; 

 propodeum and upper part of metapleuron partially or almost 

 completely covered with weak transverse wrinkles, these always 

 definite in the female but often obsolescent in the male; hind tibia of 

 male subcarinate dorsally, with a rudimentary series of teeth; hind 

 tibia of female with a dorsal row of strong, rather narrow teeth that 

 are about 0.8 as wide as the length of the bristle beneath each; sixth 

 sternite of male with erect brown hairs, longer laterally than discally, 

 without the contrast in length and density between the sides and the 

 disc that obtains in other species of the magnus group ; subgenital plate 

 of male with a marginal brush of longer hairs, these hairs hardly longer 

 on the apicolateral margin than on the apical margin; discal hairs on 

 male subgenital plate short, declinate. Structure otherwise as de- 

 scribed for P. texanus. 



Black. Wings orange with the base and apex infuscate, to entirely 

 black, according to the subspecies; head and thorax with a faint 

 purple iridescence. 



There are two subspecies, one in the Southwestern States and the 

 other from eastern Kansas to Alabama. 



2a. Priocnemioides austrinus fuscatus, new subspecies 



Wings blackish, tinged with orange along the costal margin and on 

 the stronger veins of the forewing, and with a more extensive orange 



Figure 21. — Localities for Priocnemioides austrinus fuscatus. 



