208 THE BUTTERFLIES OF THE WEST COAST 



320. Thecla Exoleta. Not elsewhere illustrated. 



Plate XXVII ; Figure 320, Female, Central California, 

 1894; Author. 

 Exoleta is supposed to be a variety of the preceding, Nelsoni, 

 being practically the same on the upper side, and with but minor 

 points of difference on the under side. I figure the under side 

 because it is there that the differences, such as they are, are located. 

 Because the curved row of dots on fore wing is absent I am of 

 the opinion that it is separate and distinct from Nelsoni. 



321. Thecla Muiri. Not elsewhere illustrated. 



Plate XXVII; Figure 321, Male, Central California, 

 1897; Author. 

 Muiri is a variety of 319, Nelsoni ; much smaller, and the spots 

 of under side in good part faint or absent. On the upper side there 

 is no difference apparent except in size. 



322. Thecla Spinetorum. 



Plate XXVII ; Figures 322, b, c. 



Fig. 322, Male, EUensburg, Wash., May 20, 1896 ; Author. 



b. Female, EUensburg, Wash., May 20, 1896; 



Author. 



c, Male, underside, EUensburg, Wash., May 20, 



1896; Author. 

 This is a member of the group to which the preceding Nelsoni 

 and Muiri belong, being very similar, and having on the under 

 side the same type of markings, including the discal bar or series 

 of dots on fore wing; the markings of hind wing are of Nelsoni 

 type, and are more distinct and obvious than in Nelsoni, or Muiri. 



323. Thecla Spadix. Not elsewhere illustrated. 

 Plate XXVII ; Figures 323, a. 



Fig. 323, Female, Central California Mts., August 5, 1890; 

 Author, 

 a, Male, underside, Central California Mts., August 

 5, 1890; Author. 

 Spadix is very plain dull mouse-color, on both upper and under 

 side with scarcely a line or a mark for ornamentation. The female 

 sometimes has a faint chestnut shade on the disk of wings, but 

 often has not. It is a rather large-sized butterfly, and lives in the 

 mountains, at an elevation of about 4,000 feet. 



