200 W. H. Edward's Descriptions of Diurnal Lepidoptera. 



We may suppose Alope to have sprung from Nepliele, but its char- 

 acteristics have become so fixed that its rank as a species cannot be 

 called in question. From Xephele might naturally spring Ariane and 

 Boopis, and from Alope, Pegala. Whether the two former are entitled 

 to rank as species future observations will determine. If they are 

 found to preserve and perpetuate their fixed characteristics, no matter 

 how restricted their range, they will be regarded as true species. I 

 believe Pegala to have fulfilled these conditions. Naturalists cannot 

 be influenced by a conjectural element in determining species. They 

 must be guided by the specific characters as they find them. Any 

 other mode leads only to confusion, especially so long as we are igno- 

 rant of the preparatory stages of the butterfly, as is the case with these 



species of Satyrus. 



oo 



Description of certain species of DIURNAL LEPIDOPTERA found within the 



limits of the United States and British America. No. 5. 



BY WM. II. EDWARDS, Newburgh, New York. 



5. Lycosna Mertila, n. sp. 



6. Si/richtus Alba, n. sp. 



7. Ilesperia Ottoe, n. sp. 



8. " Mingo, n. sp. 



9. " Yreka, n. sp. 



1. Papilio Bairdii, n. sp. 



2. Colias Behrii, n. sp. 



3. Lycxzna Violacea, n. sp. 



4. " Pseudargiolus, Boisd. and 



LeConte. 



Papilio Bairdii, nov. sp. 



Allied to Asterias; primaries more produced and narrower, and se- 

 condaries more rounded than in that species. 



Male. Expands -4 inches. Upper side black ; both wings crossed 

 by yellow bands as in Asterias, the spots being similarly shaped, but 

 larger than in that species, and fading gradually into the black ground 

 on the inner side; at the anal angle a rounder black spot within a 

 spot that is fulvous above, yellow below; there is no trace of blue be- 

 tween the yellow bands on secondaries as there is in Asterias. 



Under side black, marked as above, the yellow paler; the end of the 

 cell on primaries a little yellow ; the outer ends only of the spots beyond 

 the cell on secondaries very slightly fulvous ; each of the black spaces 

 between the yellow bands on secondaries a little sprinkled with blue 

 scales. 



Body black ; shoulders brown-yellow; two dorsal and a lateral row 

 of yellow spots on the abdomen. 



From one male ft'oni Arizona. 



I have named this species in honor of Professor 8. F. Baird, whose 

 example and influence have done so much to excite and foster a love for 

 the study of Natural History. 



