10 WM. n. EDWARDS. 



Descriptions of New Species of DIURNAL LEPIDOPTERA. found within the 



United States. 



BY WM. H. EDWARDS. 



1. Pahnassius Brhrii. 10. Guapta Diiyas, 



2. CoLiAS EDWAunsii. 11. Thecla Beiuui. 



3. " Emilia. 12. " Tktua. 



4. " AuiADNE. 13. " Dryope. 



5. PlEUIS VlRGINIEXSIS. 14. LvCiENA KoDIAK. 



6. Argy.vnis Nevadensis. 15. Chrysophanus Cupreus. 



7. Grapta Silescs. 16. " Hermes. 



8. " ZkPHYRUS. 17. " VlRGINIENSIS. 



9. " Mausyas. 18. Hesperia Hayhurstii. 



Parnassius Beiirii, n. sp. 



3[ale. Expands 2.5 inches. Upper side pure wliite ; marginal border 

 of primaries transparent, enclosing a submarginal row of large white 

 lunules; no median transparent line as in (Jlodius ; costa, base of pri- 

 maries and disk much sprinkled with black scales; a large, subovate 

 black spot in cell, a broad, tortuous bar on arc; beyond the cell two 

 small white patches in irregular black rings ; in median interspace a 

 black point. 



Secondaries have the base densely covered with black scales, which 

 extend thinly along margin beyond cell, projecting a branch upon the 

 arc; at the cuds of uervules on margin small black patches; a submar- 

 ginal row of conspicuous black lunules, separated ; in the upper discal 

 interspaces a large, pale ochraceous spot within a black ring. 



Under side marked as above, except that on costal edge of seconda- 

 ries is a second ochraceous spot, of same size, in black ring; base of 

 secondaries marked by patches of black disposed like the red spots of 

 Clodius; on abdominal margin a black stripe divided into two spots 

 by the lower median nervure. 



Thorax l>eiieath, and palpi white; antennae black annulated with 

 white ; club black. 



From 1 % taken in the Sierra Nevada. Collection of Dr. Behr. 



This differs widely from any other American species, in the extent 

 of the pure white color and consequent smallness of the transparent 

 space, the conspicuous black markings and the absence of red spots. 



