102 WEEKS — SOME NEW BUTTERFLIES ge 
lower submedian nervule. The lower half of this is crossed by interspacial 
longitudinal dashes of very dark brown. The lower interspaces, also, bear 
dark dashes close to hind margin. These dark markings, excepting those at 
apex, are somewhat indistinct, but undoubtedly vary in their prominence and 
suffusion in various specimens. Below the discoidal space, in the centre of 
the wing, is a suggestion of a fine lightish dash extending toward apex. This 
is scarcely visible. 
The lower side of hind wing is difficult to describe. The general appearance 
is mottled, very dark rich brown and lighter brown with jagged lines of bmil- 
liant blue. The coloring shows much darker than on fore wing. From the 
base a narrow line of brilliant blue extends upward along the costa. The 
immediate basal area is dark rich brown. Outside of this is a very irregular 
band of lighter brown, extending from near centre of costa across to centre of 
inner margin. The outer edge of this is bordered by a brilliant blue thread. 
The anal area is of very light brown with irregular dustings of darker brown. 
The hind margin is bordered by a white thread. The hind marginal fringe is 
whitish, broken by black at the ends of the nervules. 
Taken April 20, 1899. 
Thecla lucaris sp. nov. 
Habitat: Bolivia, near Cusilluni. Expanse: .72 to 1.10 inches. 
Head, thorax and abdomen, above, grayish brown; below, grayish. Anten- 
nae, blackish above ; gray beneath, with white annulations at base of each 
joint. Club blackish with tawny tip. Legs steel gray. 
Upper side of fore wing grayish brown with a blackish shading at basal area 
in certain lights; also, under same conditions, there is the appearance of a 
discoidal spot of blackish. At first glance, however, the wing appears to have 
no markings. Hind margin fringed with hairs of a color slightly lighter than 
ground color. 
General color of hind wing the same as of fore wing. The hind margin, 
within its fringe, has a slight darkish thread. At end of lower median ner- 
vule is a short delicate tail, nearly one sixteenth inch long, dark-colored, with 
a white point. At the margin, in interspace above this, is a black spot sur- 
rounded on basal side by a semicircle of reddish brown, and, in the inter- 
space below, another similar spot, but much smaller than the first. 
Under side of fore wing steel gray with a brownish tinge. Basal area 
dusted with bronzy scales. At hind margin, running from apex down to 
lower median nervule, is a double line of interspacial spots of a color slightly 
darker than ground color, but all of them very indistinct. On close examina- 
