140 NORTH AMERICAX BUTTERFLIES. 



spots in center of •\ving. Spots on margin faint, that on inner angle is 

 dusky, faintly edged with orange ; the second and third are bhickish, sur- 

 mounted -with orange. Expands 1.03 to 1 .25. Found at Spring Lake 

 Utah. 



332. THECLA SPINETORUM Bd. 



Orange Hair-streak. 

 Size, rather smalL One tail. Reddish orange above, chestnut 

 beneath, both wings crossed by a white line. There is a very faint line 

 of spots on outer margin of hind wings, the first two from angle are dis- 

 tinct; of these the first is bordered with a few white scales, the second 

 is blue on an orange ground. The central band is a series of round 

 black spots, crossing both wings. Expands 1.10. Found on Mt. Shas- 

 ta, California. 



Fi-. 40. 



,\ — \ --^^-'^ 

 a b c d e 



Illustrating the genus Thecla, lower side, hind wing; a, humuli ; 1j, acadica: c, edwardsii: d, 

 calanus ; e, strigosa. 



353. THECLA AURETORUM Bd. 



Golden Hair-streak. 



Wings, (on both surfaces,) reddish brown ; on inner angle of hind 



pair above is an indistinct crescent of orange. On hind wings beneath 



is an obscure wavy line, and on inner angle of hind pair a black crescent 



and two spots of orange. Found in California. 



354. THECLA SYLVINUS Bd. 



Woodland Hair-streak. 

 Reddish brown above ; ashy beneath witli a dot in center of wing 

 and a double line of black dots crossing wings. On inner angle of hind 

 pair is an ashy blue spot and next it a clear rufous crescent. Found 

 in California. Neither this species, nor the one preceding have been 

 identified by American collectors. 



355. THECLA SIVA Edw. 



Siva Hair-streak 

 Allied to T. smilacis, with two tails and a similar color above, but 

 the ground color is darker, being more chestnut. Grayish beneath, 



