138 NORTH AMERICAN BUTTERFLIES. 



345. THECLA NELSONI Bd. 



Nelson's IIair-streak. 



Size, small. One short tail. Yellowish brown above, without 

 markings, fringed with white. Beneath, on fore wings duller, there is 

 a sub-marginal white band, black edged interiorly. Hind wings, chest- 

 nut with the black and white band continued. Near inner angle are two 

 or three whitish crescents surmounted by faint orange spots. Expands 

 1.00. Habitat, Big Trees and Mendicino, California. 



34:5a. Thecla nelsoni exoleta H. Edw. Similar to the typi- 

 cal T. nelsoni, but paler with the marginal crescents very indistinct. 

 The central band on hind wings and the sub-marginal band on fore wings 

 are wanting. 



345b. Thecla nelsoni muivii H. Edw. Smaller than the type 

 and darker with the fringes of the same color as the wings, not white. 

 The marginal crescents on hind wing are slate color. 



340. THECLA ADENOSTOMATIS H. Edw. 

 Gray Hair-strak. 

 Size, medium. Tails, two. Slaty brown above, unspotted. Slaty 

 gray beneath, faintly tinged with greenish on fore wings. There is an 

 unbroken wavy line crossing fore wing, white edged inwardly and with 

 dark slate outwardly, and six very faint sub-marginal patches of black. 

 Hind wings, dark slate at base somewhat mottled with white along low- 

 er margin. There is a white central band, edged inwardly with black 

 and white. Then there is a sub-marginal series of five or six crescents 

 black-edged inwardly, white-edged outwardly. Expands 1.1 5 to 1.25. 

 Found in Northern and Southern California. 



347. THECLA TACITA H. Edw. 

 Mendicino Hair-streak. 

 Size, small. Tails, two, but small. Pale plumbeous above, a little 

 darker at outer margin, sex patch, and along veinings distinctly marked 

 with a darker shade. Near inner angle of hind wing is a small, fiint 

 spot of ocherous. Lower side, paler, with a very faint sub-marginal 

 line of blackish crescents, and a central line of spots equally faint. 

 There is a black spot on the fringe at extreme point of inner angle of^ 

 hind wing followed by a patch of bluish scales, and a very pale yellowish 

 triangular spot, narrowly edged with black. All of the markings are 

 indistinct. Expands 1.00. Habitat, Mt. Shasta, California. 



