GRAPTA V. 
INTERROGATION'S, Vab. FABRICII. 
Form alike in both, sexes; primaries strongly falcated, much excised; tail 
longer, narrower, less tapering than in Umbrosa ; anal angle much produced. 
Male. — Expands 2.5 to 2.7 inches. 
Upper side bright red-fulvous, the terminal third of primaries and whole of 
secondaries obscured by ferruginous; spots as in Umbrosa; hind margins of both 
wings and abdominal margin at the fold largely edged with lilac; fringes fus- 
cous. 
Under side clouded in shades of brown and ferruginous, sometimes partially 
suffused by purple; the general pattern as in Umbrosa, without the striking diver- 
sity of color; the common row of black points more or less obsolete; costal edge of 
primaries ferruginous beaded by small round yellow spots, between which and the 
sub-costal nervure the ground is yellow specked with ferruginous; silver mark as 
in Umbrosa. 
Female. — Expands 3 inches. 
Upper side similar to male; under side brown suffused with ochraceous, 
deeply along hind margin ; sometimes partially suffused with purplish instead of 
ochraceous; the whole surface covered with fine abbreviated ferruginous streaks; 
the common row of black points obsolete, or represented by two or three at outer 
angle and apex only, and always minute. 
These varieties differ in shape of wings, in comparative breadth and length 
of the tail, in the prominence of anal angle ; in both sexes in the color of upper 
surface, in that of the marginal edges, and of the fringes; in the color of under 
surface and in the relative position and extent of the yellow and ferruginous mark- 
ings of the costal margin of primaries. These differences are conspicuous and 
constant, there being, so far as I know, no intergrades. 
Until the publication of Mr. Lintner’s paper of 1869, these two forms had 
been treated by late authors as one species, one or the other, or the sexes of either, 
being described as C aureum or Interrogationis indifferently. Judging by the 
imagos alone each wag entitled to rank as a species, as they presented constant dif- 
ferences in essential characters and Mr. Lintner very properly separated them. 
But believing that the darker species did not fall within the Fabrician descriptions, 
he applied to it the name Umbrosa. 
