s 
56 [May 
than in Tliyatyra and in this respect it approaches Gonophora. The 
ornamentation partakes of the peculiarities of both sections. 
The following is a table of the genera:— 
Section I. YEK^. 
A. Size moderate. Antennse short, stout, pubes¬ 
cent or pectinated in both sexes.1. Cymatophora. 
A. Size small. Antennae long, slender, nearly 
simple or slightly pubescent in both sexes. . 2. Leptina. 
Section II. FALS^^E. 
B. Ornamentation in well defined spots; reni- 
form and orbicular spots indistinct. Costal 
margin rounded.5. Thyatyra. 
B. Ornamentation in lines and irregular shaded 
marks; reniform and orbicular spots dis¬ 
tinct. Costal margin straight.C. 
C. Exterior margin moderately oblique. Probos¬ 
cis moderately long; third joint of palpi 
very slender. Abdomen of the male not 
tufted underneath.4. GtONOPHORA. 
C. Exterior margin convex. Proboscis short; 
third joint of palpi moderately slender. 
Abdomen of the male tufted beneath ... 3. L acini a. 
In the following Catalogue of the described species of this family 
proper to our Continent, I have noted the Collection in which I found 
and determined the specimen and the locality in which it was reported 
to have been taken. 
CYMATOPHORINA, H. S. 
N'octiio-Bomhycid^^ Boisd., Gruen., Walker. 
CYMATOPHOEA Treitschke. 
caniplaga Walker, C. B. M. Noct. I, p. 18. 
Canada (Walker). 
