INTRODUCTION. xi 



to the genus Lioptiliis, Wallengren, and is re- 

 described and figured in this pamphlet. 



The third, Pterojjhorus cervinidactylus, to judge 

 from Mr. Packard's description, may probably be 

 found to be identical with the somewhat variable 

 and widely distributed Platyptllus hertrami, a Texan 

 variety of which has been described by Prof. Zeller 

 (Stett. ent. Zeit. 1867, p. 333) under the name of 

 P. hischoffii. 



Mr. Walker (Cat. Lep. Het. xxx. p. 940) described 

 Pteroplwrus homodactylus from Vancouver's Island ; 

 and Prof. Zeller (Verb. z.-b. Ges. Wien, xxiv. pp. 444, 

 445) records (Edemato^horus cretidactylus. Fitch, 

 and describes Lioptihis maUhewimms, both also 

 from Vancouver's Island. 



With these exceptions I am not aware of any 

 Pterophoridae having been alluded to by entomo- 

 logical authors as occurring in North-west America. 



In this pamphlet I have described several new 

 species, giving figures of each ; and lune given 



