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XXI. New Species of North American Tortricidse. By 

 The Right HonbLe. LORD WALSINGHAM, M.A., 

 LL.D., F.R.S., etc. 



[Read Oct. 2nd, 1895.] 

 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 Psedisca 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 a: 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.) 



