30 PROCEEDINGS OF THE NATIOISTAL MUSEUM vol.71 



oped. Gnathos hook-like and very heavy; unspined. Anellus a 

 slightly curved plate with strongly developed lateral arms. Aedoea- 

 giis stout. 



Female with ductus bursae short, strongly chitinized (the differen- 

 tiation of ductus and bursa in this genus and Doratoperas is rather 

 difficult and in both we identify the bursa as beginning at the end of 

 the chitinization of the ductus). Bursa copulatrix long and consid- 

 erably enlarged at extremity ; without signum. Ovipositor and sup- 

 porting rods normal. 



Abdomen of male without lateral hair tufts on second segment. 



For purposes of comparison we give, in addition to the figures of 

 Xanthi^opherne, figures (26, 77) of the male and female genitalia of 

 Doratoperas atrosparsellus Walker, the type of Hampson's genus. 



We have taken two species out of Doratoperas Hampson to form 

 this genus on account of the anastomosis of veins 11-12 of fore wing. 

 Otherwise the species agrees with Doratoperas^ from which they are 

 doubtless derived.^ 



Genotype. — Doratoperas hiurtibrata Schaus. 



KEY TO THE SPECIES OF XANTHROPHERNE 



1. Fore wing with discal and terminal dots and faint outer line ; front flat. 



fulvescens (Hampson) 



Fore wing without dots ; outer line broad, shaded, widening below ; front 



strongly cone shape biumbrata (Schaus) 



XANTHOPHERNE FULVESCENS (Hampson) 



Figure 27 



Doratoperas fulvescens Hampson, Ann. Mag. Nat. Hist., ser. 4, vol. 4, 

 1919, p. 61. 



We possess a single male of this species from the type locality. It 

 has the general appearance of a light colored Doratoperas. The hind 

 wings are nearly white. 



EpaTise. — 42 mm. 



Male genitalia figured. 



The life history is unknown. 



Type. — In British Museum. 



Type locality. — Yahuarmayo, Peru. 



XANTHOPHERNE BIUMBRATA (Schaus) 



Figure 75 



Doratoperas hiumhrata Schaus, Proc. Ent. Soe. Washington, vol. 24, 1922, 

 p. 145. 



The single female type is before us, collected by Doctor Schaus and 

 Mr. Barnes. 



2 Doratoperas xanthoterma Hampson is unknown to us in nature and may or may not 

 be found referable to Xanthophcrne. 



