96 
wing, and slightly over disk; the veins, the space between the postmedian series 
of spots, the basal interspaces and the terminal area suffused with orange-brown. 
@ Paler than g, much as eurynome 2, with pale subterminal spots and 
rather heavy black terminal border on upper side; beneath primaries deeper 
rosy, subterminal spots shaded with green towards apex; secondaries much 
more suffused with green generally, subterminal row of spots rarely with traces 
of silver scaling, other spots unsilvered; orange-brown shading often prominent 
beyond the postmedian spots, encroaching on the pale band. Expanse ¢ 47 mm. 
2 51 mm. 
Hasitat. White Mts., Arizona (Lusk). 76,79. Types, Coll. Barnes. 
Evidently a very distinct race, characterized by the unsilvered 
underside of secondaries and the peculiar contrasted appearance, due 
to the mixture of green and orange-brown scaling. We take pleasure 
in naming it after the collector, Mr. R. D. Lusk, who has brought 
many interesting forms to light as a result of two seasons’ collecting 
in the White Mts., Arizona. We prefer to consider this a form of 
eurynome rather than bischoffi until it has been definitely proved that 
the two names represent mere racial forms. 
BRENTHIS CHARICLEA V. BOISDUVALI Dup. (PI. II, Figs. 5, 6). 
In Gronlands Insekt-fauna (1890) Aurivillius figures typical chari- 
clea Schneid. arctica Zett. and var. boisduvali Dup. restricting the lat- 
ter name to the Labrador race; this race differs from the type form 
from Lappland and Finnmark in the heavier purple suffusion on under- 
side of secondaries and in the fact that the central white median band 
of spots is largely suffused with reddish-brown, leaving only portions 
of the white color visible. This race extends across the northern por- 
tion of the continent without any marked degree of variation; we have 
specimens from Labrador; Hymers, Ont.; Calgary, Alberta; Saskat- 
chewan, before us which cannot be differentiated into well-defined 
races. Two years ago we captured a long series of specimens on Mt. 
Ranier, Washington which shows sufficient constant points of distinc- 
tion from our other specimens to warrant a name; we characterize the 
race as follows: 
B. CHARICLEA RAINIERI subsp. nov. (Pl. II, Figs. 1-4). 
é Upper side as in typical boisduvali with a slight reduction of the black 
markings as compared with Labrador specimens. Beneath, secondaries much 
more contrasting in coloration, median band with less red-brown suffusion, often 
almost entirely pale yellow, the black border to this band not so heavy and the 
spot in the 4th interspace from costa more drawn out, being intermediate in 
