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 antennae bipectinated to the tip ; palpi porrect, just reaching the front; fore 
wings with costa straight, veins 2 and 3 stalked, 11 straight, fork of discal vein 
broadly open without cross-vein ; hind wings triangular, veins 6 and 7 stalked, 8 
anastomosing at base ; hind tibiae with small terminal spurs. 
Type arcuata Druce (Biol. Cent.-Am. Lep. Het., II, 444 > pi- 88, 
fig- 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 antennae simple; palpi porrect, three times as long as the head, third joint 
distinct, quadrate ; fore wings w T ith costa straight, veins 2 and 3 separate, 7 to 9 
stalked, II very slightly curved toward 12 at base, fork of discal vein short and open ; 
hind wing with veins 6 and 7 stalked, 8 anastomosing at base ; hind tibiae 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— ProlitJiacodes Schaus, Journ. N. Y. Ent. Soc. IV, 56. 
Type triangulifera Schaus. Mr. Schaus has given me a specimen 
of the typical species. 1 he 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 PTILODONTIDZE. 
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. 
