Dec, I9II.] Banks: PsAMMocHARiD.^. 237 



5. Wings rather reddish ; in hind-wing the cubitus arises before the end of 



cell; second recurrent vein of fore-wings strongly hent. . . .flammipennis. 



Wings more yellowish ; in hind-wing the cubitus arises beyond the end of 



cell; second recurrent vein of fore-wings but little curved, .pallidif'ennis. 



6. Metanotum transversely striate, and hairy 7 



Metanotum not striate 8 



7. Wings reddish yellow, except tip ; femora I with long hair beneath. 



mexicanus. 



Wings mostly black, with a yellow spot maculipennis. 



S. Wings mostly reddish or yellowish 9 



Wings all black ; no hair on metanotum idoneus. 



■g. Marginal cell acute at tip ; metanotum and scutellum with erect hair. 



texaniis. 



Marginal cell rounded at tip 10 



10. Metanotum without erect hair terminatus. 



Metanotum with erect hair heiligbrodti. 



Pepsis. 



In this genus of magnificent insects the names have become much 

 •confused ; I offer only a few preliminary notes. 



P. nephele: this can be recognized by the long hair beneath 

 femora I, as well as by broadly margined wings. P. circularis is, 

 I believe, the male, or else male of some closely allied species of which 

 the female is unknown. 



P. inermis: this has a fine distinguishing character in the hairs 

 with curved tips situate in the spiny area of the hind tibiae. 



The P. chrysothernis and P. pyramis of the Fox collection are (I 

 consider) the sexes of one species; I have it also from California, 

 both sexes at same locality. 



P. venusta Smith: I have a specimen of this, not hitherto recorded 

 north of Mexico, from Palmerlee, Arizona, the white of tip of wings 

 extends to the middle of the marginal cell. 



