ures? WEEKS — UNFIGURED LEPIDOPTERA 5 
1900 
Pyrgus pelagica A. G. Weeks, Jr.* 
(Plate I, Figure 5.) 
Habitat: San José del Cabo, Lower California. Expanse: 
1.25 inches, 
Under side of palpi and head covered with whitish hairs; top of same 
blackish-brown gray; forehead with some whitish hairs mixed with the darker. 
Thorax and abdomen blackish above, end of abdomen shading into gray, 
beneath whitish. Legs covered with whitish hairs, brownish at ends. Antennz 
blackish, with small white annulations at base of each joint; club above 
blackish, tipped with light brown, below light brown down to joint. Wings, 
above, dark brownish gray, with white and grayish white spots, hind margins 
with a fringe of dark brownish gray. Hind margin of primaries edged with 
a dark line, just within which, in interspaces, is a row of indistinct darkish 
spots, absent in some specimens. The dark brownish gray covers marginal 
area, and is dusted and irregularly shaded with grayish scales. On costa one 
fourth distance from tip to base, between the subcostal nervules, three (some- 
times two or one) small white spots. Across centre of wing, extending 
from edge of costa across end of discoidal cell down to submedian nervule, 
a whitish band of consecutive spots, of irregular form and varying distinct- 
ness, sprinkled more or less with brownish scales. In some specimens this 
space shades off into ground color, in others the edges between spots and 
ground color are distinctly marked, and bordered with a darkish line. In 
centre of cell, an irregular whitish spot of same character; between this spot 
and the spot at end of cell, and below submedian nervule, an irregular whitish 
spot, dusted more with brownish scales. Base dark brownish gray, with some 
grayish scales. The suffusion of the ground color is more marked in some 
specimens than others, rendering an accurate general limitation of the spots 
difficult. Some specimens show a slight yellowish tinge on white spots. 
Ground color of secondaries a blackish brown, of more distinct character than 
the ground color of primaries. Costa white. Hind margin edged with a 
dark line, within which, in interspaces, is a row of white specks, sometimes 
absent, which, at anal angle, are transversely elongated, forming an indistinct 
line from inner margin to submedian nervule. Within these, one third distance 
to base, a row of brownish spots, extending from costa to inner margin, parallel 
to hind margin, but not in line, and the one near centre larger than the others, 
and drawn nearer to cell. Within these, across centre of wing, a prominent 
whitish band, forming an extension of the same on primaries, but of purer 
white, ending at submedian nervure. Basal area, of ground color, but toward 
inner margin covered with light grayish hairs, which extend along margin to 
anal angle. Beneath, general color is grayish white, with a very slight yellowish 
brown tinge, and showing shadows of the markings above. Costa of primaries 
1 Canadian Entomologist, Vol. XXIII, No. 6. 
¥ 
