THE CANADIAN ENTOMOLOGIST. 39 



And not until another species from the same region shall have been dis- 

 covered, having closer affinities with it than has Microcentnis caryce^ will 

 there be any reasonable grounds for doubting that this, which I so refer, 

 was the form which Messrs. Amyot and Seiville described under the 

 name perdita. 



I forwarded specimens of the species to Dr. Goding, and was much 

 surprised to learn that it was identical with his Centrtichus Liebeckii, also 

 from Pennsylvania, described on page 471 of the List of N. A. Mem- 

 bracidaj. In a letter he cites the genus as " Centruclioides,^\ which I 

 suppose to be a manuscript name founded on this species. I, however, 

 believe this species (which in future must be known as perdita, A. & S.) 

 to be congeneric with the caryce of Fitch. I have specimens of caryce 

 with rudiments of thoracic horns. Outside of this character the species 

 are very closely related. 



I have yet to see a true Ledra from either North or South \merica. 



SOME NEW SPECIES AND VARIETIES OF LEPI DOPIER A 

 FROM THE WESTERN U. S. 



BY W M . BARNES, M . D. , DECATUR, ILL. 



Argymiis Chariottii, n. sp. 



S  — Upper surface very much like Cybele ; differs from Leto in the 

 lighter shade of the ground colour and the much darker and more exten- 

 sive basal area. This area is sharply limited at the outer edge and 

 extends to the median row of markings, which on the hind wings are 

 quite obscured by it. The apical region is not so clear as in Leto, the 

 row of round spots in the outer belt continuing of large size up to the 

 costa, and the dark blotch lying just within the upper three spots is very 

 prominent, as in Cybele. 



Under surface clearer, brighter, and markings less heavy than in 

 Leto. The marginal brown shading very faint, and the submarginal row 

 of crescents, which on the secondaries are very narrow but well silvered, 

 have but a very fine edging of the same shade. The dark basal area 

 stops sharply at the median row of silvered spots, as in Cybele, and is 

 not present on their outer side, as in Leto. 



V .—Upper surface closely resembles Leto, the ground colour and 

 basal area being the same. The markings are, however, not so heavy 

 and the submarginal row of lunules do not so completely enclose the 

 row of spots of the ground colour. On the under surface the markings 



