fd CLARK — NEW SPHINGIDAE 65 
being produced by the cilia, which are white at this point, as indeed else- 
where on this wing, except on the veins, where they are dark brown. 
Fore wing beneath: Light red-brown at base, shading to dark brown 
at distal margin. Very faint postmedian line from costal margin, becoming 
soon obscure. Double postmedian line, dotted on veins, from costal mar- 
gin two thirds the distance from base to apex, sharply angled on R1, and 
thence extending roughly parallel to distal margin to the inner margin. 
Very faint light purple subapical patch, corresponding exactly to patch on 
upper side except that at its basal third it disappears. Cilia light brown. 
Hind wing beneath: Light brown, unicolorous. Faint median line from 
a point midway of costal margin to anal margin. Midway between this 
line and the distal margin a faint postmedian line, slightly undulate, and 
approximately parallel to the margin, dotted on veins. Cilia light brown, 
dotted on veins. 
Isognathus rimosa australis subsp. nov. 
Plate IX, figure 5. 
Al. ant. long., 7, 31 mm. Al. ant. lat., %, 11 mm. Marg. ext., 3, 
18 mm. 
Habitat. — Ururahy, Eastern Brazil. Haseman, 1908. One male in coll. 
B. Preston Clark, given by Dr. W. J. Holland. 
Fore wing above: Generally brown in tint, shaded with white. Less 
contrast in color than in either J. rimosa or I. r. papayae. All the mark- 
ings are finer than in papayae, the white tuft at base of fore wing, so 
prominent in papayae, is here light brown, and inconspicuous. The black 
streak, R3-M1, is very narrow and but 3 mm. in length. A second nar- 
row streak, M1—M2, 2 mm. in length and diagonally basad from the first. 
Distal margin convex, and obtusely angled at R3. Narrower-winged than 
either rimosa or papayae. An evenly curved white line, convex dis- 
tally, extends from a point on costal margin, 9 mm. from the apex, to a 
point on M1, 4 mm. from the distal margin. This line is sagittate distally 
on the veins, the points being black-tipped. Veins, SC1 to M1 inclusive, 
proximal of this line, are conspicuously white with black dots. 
Hind wing above: Marginal band is in width between rimosa and 
papayae. 
Fore wing beneath: Brown, unicolorous, save for yellow band along 
the inner margin, narrowing to hinder angle. Faint trace of distal marginal 
band. 
