Dec. 1898.] Dyar : On South American Moths. 239 



cea Moschl. ), cicur :Sch., druceoides Dogn., brumalis Sch. and rubens 

 Sch., all before me. I am indebted to Sir G. F. Hampson for the 

 structural characters of the genera referred to the synonymy. 



Genus Paleophobetron, nov. 



Male antennas bipectinated to the tip ; palpi porrect, just reaching the front ; fore 

 wings with costa straight, veins 2 and 3 stalked, II straight, fork of discal vein 

 broadly open without cross-vein ; hind wings triangular, veins 6 and 7 stalked, 8 

 anastomosing at base ; hind tibia; with small terminal spurs. 



Type arcnata Druce (Biol. Cent. -Am. Lep. Het., II, 444, pi. 88, 



% 9)- 



This differs from Perola in lacking the middle spurs of hind tibiae 



and in wing shape. 



C. Male antennae simple. 

 a. Veins 6 and 7 of hind wings from a point or stalked. 



Genus Pseudovipsania, nov. 



Male antennas simple ; palpi porrect, three times as long as the head, third joint 

 distinct, quadrate ; fore wings with costa straight, veins 2 and 3 separate, 7 to 9 

 stalked, II very slightly curved toward 1 2 at base, fork of discal vein short and open ; 

 hind wing with veins 6 and 7 stalked, 8 anastomosing at base ; hind tibias with termi- 

 nal spurs, the legs weaker than the middle pair which are apparently abnormally 

 strengthened. 



Type frigida Schaus (Proc. Zool. Soc. Lond., 1892, 323). 



Genus Prolimacodes Schaus. 



1896 — Prolimacodes Schaus, Journ. N. Y. Ent. Soc. IV, 56. 



Type trianguttfera Schaus. Mr. Schaus has given me a specimen 

 of the typical species. The structure is as in the North American 

 scapha, except that vein 10 of fore wings is from cell and 6 and 7 of 

 hind wings from a point. It is a form a little more generalized than 

 our species, but, I think, not generically distinct therefrom. 



Family PTILODONTID^E. 



Trabala truncata Schaus. 



Belongs to this family (Melalophidae). In the synoptic table it 

 falls with Harpyia, but the tongue is imperceptible and the wings are 

 shorter and more triangular. The palpi are scarcely curved, and ex- 

 ceed the front by half their length ; third joint small. I do not yet 

 know enough of the South American Ptilodontid genera to place this 

 form. 



