LIOPTILUS. 49 



brown line on each side of the femora and tarsi, 

 sometimes extending along the tibiae. 

 Expanse 25 millims. 



I took several specimens of this beautiful and 

 distinct species on Pit River, in Shasta County, Cali- 

 fornia, on the 25th July, 1871. 



The species is easily recognizable by Mr. Packard's 

 description above referred to ; but I have ventured 

 to redescribe it here for the purpose of noticing a 

 few points which have not been mentioned by him. 



The greater liberty which has been taken in 

 changing the termination of the original name will, 

 perhaps, be considered justifiable according to the 

 rules of zoological nomenclature. Prof. Zeller (Verh. 

 z.-b. Ges. Wien, 1873, p. 117) has rightly called 

 attention to the objectionable mixture of two lan- 

 guages exhibited in such names (" Bastardnamen ") 

 as those given by Mr. Asa Fitch to several of the 

 Pterophoridae in his first and second Reports on 

 Noxious Insects of New York, pp. 139, 143 ; and 

 the same author has renamed Fitch's Pterophorus 

 carduidactylus, omitting the termination, and reducing 

 it to the unobjectionable P. cardui. 



He has also pointed out (Verh. z.-b. Ges. Wien, 

 1874, p. 447) the same objection to the names given 

 by Packard to the three Californian Pterophoridae 



