ae, CLARK — NEW SPHINGIDAE 69 
Xylophanes tyndarus marginalis subsp. nov. 
Plate IX, figure 3. 
Al. ant. long., 7’, 26 mm.; 9,31 mm. Al. ant. lat., 7,11mm.; 9, 
13mm. Marg. ext., o',16mm.; 9, 18 mm. 
Habitat. — Rio Grande do Sul, Brazil. One male and one female in coll. 
B. Preston Clark, received from Mr. George Franck. 
A smaller, shorter-winged insect than X.tyndarus. More yellow in gen- 
eral coloration both above and beneath. 
Fore wing above: Three antemedian lines obscure. First discal line 
less oblique than in X. tyndarus, contrasting less sharply with the rest of 
the wing, and shading off abruptly externally. Line 4 faint. Apical line 
faint but long, joining line 4 behind R2. 
Hind wing above: Green band reaching to the costal margin, and more 
extended distally as it approaches it, the black marginal band being thus 
narrower costally, than in X. tyndarus. The black basal area is less ex- 
tended. 
Fore wing beneath: Basal area light brown and less extended. All 
markings less distinct. Apical line less oblique, being, behind R2, distant 
only 4 mm. from the distal margin. Marginal area bordered by this line 
and by the irregularly undulate postdiscal line, is thus narrower than in 
X.tyndarus. Discal line very faint. 
Hind wing beneath: Median line faint. Wing yellowish. Marginal 
band narrow, as on upper side. 
It seems probable that a small male from Theresopolis, men- 
tioned in the ‘ Revision’! as being in the British Museum, be- 
longs to this subspecies. 
1 Novitates Zoélogicae, Vol. IX, Supplement, p. 683. 
