495 
XXI. New Species of North American Tortricid83. By 
The Eight Honble. Lord Walsingham, M.A., 
LL.D., F.R.S., etc. 
[Read Oct. 2nd, 1895.1 
U Plate XII. 
The following species are for the most part described 
from collections made by the late H. K. Morrison in 
Arizona and N. Carolina, and Mr. W. G. Smith at 
Loveland in Colorado; 18 out of 26 are figured. 
I am by no means convinced that these few descriptions 
exhaust the number of the undescribed species received 
from them, but especially in the genus Psedh-ca the local 
varieties have so strong a tendency to overlap according 
to the latitude in which they are taken that we meet in 
an accentuated form the ever-recurring difficulty of 
deciding what is a distinct species and what may be 
regarded as a mere variation from some already described 
northern or southern type. 
I have for this reason selected those only which are 
obviously distinct in their characters, and which at least 
in the absence of any long series of connecting links 
cannot possibly be confounded with their Californian or 
other allies. 
Had I been less strictly bound by this rule I could 
certainly have made known several additional variations 
in colour and markings which might well have claimed 
specific distinction, but which for the moment I have 
preferred to regard as strongly marked varieties of 
species already known to science. I am indebted to my 
friend. Dr. Fernald^ for his advice and assistance in more 
than one instance, but even his high authority and 
sanction have not given me the courage to include in 
the present list all those species which he regarded as 
undescribed. 
The paper has been somewhat expanded since the 
plate was put in hand, a further collection made by 
TRANS. ENT. SOC. LOND. 1895. — PART IV. (dEC.) 
