216 



of orange lunules, narrowly separated by the veins and, except below 

 costa, showing none or only faint traces of black internal border. 

 The 5 is dark brown and has the subterminal orange band of secon- 

 daries continued on primaries for half the length of the outer margin. 

 We propose the name spaldingi for this species in honor of the col- 

 lector, Mr. Tom Spalding of Provo, Utah ; our types are 2 # , 1 9 

 from Provo, Utah (Aug. 1-7), 1 $ from Silver Lake, Utah (July 24- 

 30) and 1 $ (very large) from Stockton, Utah, the latter in the col- 

 lection of Mr. Spalding; we figure the species on PI. XVI, Figs. 9-11. 

 The S genitalia (PI. XVII, Fig. 6) differ from those of enoptes in 

 having the Valvae much more flattened in their proximal portion and 

 the distal margin furnished with spines which gradually increase in 

 size from the dorsal to the ventral angle. 



In conclusion we offer the following resume of the grouping of 

 these species : 



1) P. battoides Behr. High Sierras, Calif. 



a bernardino B. & McD. S. Bernardino & S. Jacinto Mts., 



Calif. 

 b intermedia B. & McD. N. Calif. 

 c oregonensis B. & McD. Crater Lake, Ore. 

 d centralis B. & McD. Rocky Mts. of Colo, and Utah. 



2) P. enoptes Bdv. California. 



a glaucon Edw. Great Basin & Rocky Mt. region. 



3) P. spaldingi B. & McD. Utah. 



4) P. rita B. & McD. Arizona. 



