pepsinae: tribe pepsini 51 



6. Wings black or mostly black . . . 2a. austrinus fuscalus, new subspecies 

 Wings naostly orange 2b. austrinus austrinus (Banks) 



7. Forewing entirely black 5. fulvicornis (Cresson) 



Forewing mostly orange, or black with a large subapical orange spot (fore- 

 wing entirely black in a Neotropic subspecies of unifasciatus) 8 



8. Temple receding behind the eye, so that the head as seen from above is dis- 



tinctly narrower across the temples than across the eyes; male subgenital 

 plate with a weak longitudinal elevation that tapers from the base; fore- 

 wing orange with a relatively broad fuscous apex that reaches or just 

 invades the apex of the radial cell (pi. 2, fig. 17) . . 6. angusticeps, new species 

 Temple not receding but slightly swollen behind the e3'e so that as seen from 

 above the head across the temples is as wide as or slightly wider than across 

 the eyes; male subgenital plate with a longitudinal raised spatulate area; 

 forewing in the Nearctic subspecies either blackish with a subapical orange 

 spot or mostly orange with a relatively narrow fuscous apex, the fuscous 

 area not reaching the apex of the radial cell, subspecies op unifasciatus . . 9 



9. Wings black, the forewing with a large subapical orange spot (pi. 2, fig. 18) ; 



male seventh sternite with the raised spatulate area a little less sharply 



defined 7a. unifasciatus unifasciatus (Say) 



Wings orange, infuscate basally and apically; male seventh sternite with the 



raised spatulate area a little more sharply defined 10 



10. Basal infuscation of forewing extending about 0.35 the distance to the basal 



vein 7b. unifasciatus cressoni (Banks) 



Basal infuscation of forewing extending about 0.2o the distance to the basal 



vein (pi. 2, fig. 19) .... 7c. unifasciatus californicus, new subspecies 



aiAGNUS GROUP 



Mesosternum with a weak triangular projection on the ridge in front 

 of each middle coxa; nipples on posterior part of apical margin of fore 

 coxa very weak; brush on inner side of hind tibia not interrupted 

 subapically in either sex, slightly to strongly narrowed subapically; 

 second sternite of female with a pair of large, weak, cushionlike swell- 

 ings but without tubercles; sixth sternite of male gently concave, with 

 stiff erect hairs on each side ; subgenital plate of male gently concave, 

 mediobasally with a faint longitudinal raised area, its apex broadly 

 rounded, and its apical and lateral margins with sparse long, and 

 dense short upright hau-s. 



This species group includes the Nearctic magnus, aratus, austrinus, 

 and texanus. With its weak tubercles on the fore coxa and weaklj^ 

 modified second sternite of the female it is a connecting link with the 

 genus Cryptocheilus. The species aratus is somewhat intermediate to 

 the Julvicornis group. 



1. Priocnemioides aratus, new species 



Forewing of male 19 to 20 mm. long, of female 20 to 26 mm. long; 

 clj'-peus of male about 2.1 as wide as long, of female about 2.4 as wide 

 as long; temple receding from just behind the eye, so that the head 

 as seen from above is distinctly narrower across the temples than 



