476 Mr. MG. Butler's List of 
secondaries differently banded, white, with an indistinct 
eravel-orange band at the base, a very irregular oblique 
band of the same colour just beyond the basal third ; an 
angulated dentate-sinuate band, touched here and there 
with dark brown across the disc, its outer edge only 
separated from a narrow border, also of gravel-orange 
(but rather paler), by a series of small lunate spots; 
abdominal area broadly white, slightly sordid along 
the margin ; body below snow-white ; the legs and sides 
of venter pale pinky brown; expanse of wings, 1 inch 
2 lines. 
Chili. 
The under surface of the secondaries is so unlike that 
of P. americanus that I have no doubt of its distinctness. 
56. Pyrgus trisignatus. 
Scelothrix trisignatus, Mabille, Bull. Soc. Ent. France, 
1875, p. cexiv. 
Chili. 
One male of this very distinct species is in Mr. 
Edmonds’s series. I can agree with Mr. Reed in his 
remark, ‘‘ Ignoro por qué el Senor Mabille la coloca en 
el jénero Scelothrix.” 
57. Pyrgus valdivianus. 
Hesperia notata, var. valdiviana, Reed, Monogr. Marip. 
Chil.p; SL (Ls7 7). 
‘Valdivia, March.”—T". E. 
One male of this very distinct species, the upper sur- 
face of which resembles P. side of Europe ; the under 
surface, however, is varied with olive-green ; the bands 
of the secondaries, which are two in number, upon a 
sordid white ground, are of a dark olive-green colour, 
the outer band only separable by its dark colour from a 
pale olive marginal border. This species is larger than 
the other Chilian forms. 
