178 MR. F. WALKER ON HETEROCEROUS LEPIDOPTERA 
serrated. Female, Antenne serrated. Abdomen extending much 
beyond the hind wings. 
218. DeGIA ImMpARATA, n.s. Mas et Fem. Sordide alba, antennis 
maris triente apicali serratis, alis anticis strigis transversis nigrican- 
tibus seepe interruptis. 
Male and Female. Dingy white. Antenne of the male pectinated to 
much beyond half the length, Abdomen of the male clothed with 
long hairs. Fore wings with slight, transverse, partly interrupted, 
blackish streaks. Length of the body 8-9 lines; of the wings 16 lines. 
219. DEGIA DEFICIENS, n.s. Mas. Sordide alba, antennis maris apice 
serratis, alis anticis strigis transversis fuscis plus minusve interruptis. 
Male. Dingy white. Antenne pectinated nearly to the tips. Abdo- 
men clothed with long hairs. Fore wings with many slight, transverse, 
more or less interrupted, brown streaks. Length of the body 4-5 
lmes; of the wings ]2-1]4 lines. 
This species much resembles the preceding one, but may be distinguished 
by its smaller size and by the different structure of the antenne. 
Fam. CYMATOPHORID, Herr.-Sch. 
Gen. THyatTrRra, Ochs. 
220. Thyatira magniplaga, Walk. Cat. Lep. 3rd ser. 1643. 
Fam. BOMBYCOIDA, Guen. 
Gen. DipHTHERA, Ochs. 
221. DIPHTHERA JUCUNDA, n.s. Foam. Glauco-viridis, thorace fascia 
nigra albo marginata, abdomine punctis lateralibus nigris, alis anticis 
lineis quatuor integris lineaque costali flexa lituram discalem inclu- 
dente nigris denticulatis albo marginatis, alis posticis cinereis fusco 
latissime marginatis. 
Female. Glaucous green. Palpi ascending, black above and at the 
tips; 3rd joint hardly one-third of the length of the 2nd. Thorax 
with a black white-bordered band. Abdomen with black points along 
each side. Fore wings with four denticulate black white-bordered 
lines; 3rd line double, including a white space; two other lines form- 
ing a loop from the costa, and enclosing the black transversely oblong 
white-pupilled discal mark; marginal line composed of elongated 
black white-bordered dots; fringe with blackish marks. Hind wings 
cinereous, with a very broad brown marginal band ; exterior border 
and fringe as in the fore wings. Length of the body 7 lines; of the 
wings 16 lines. 
Gen. Acronyota, Ochs. 
222. ACRONYCTA RUBIGINOSA, n.s. Fem. Rubiginoso-cinerea, ab- 
domine pallide cinereo, alis anticis lituris costalibus fuscis striga ob- 

