enn CLARK — NEW AMERICAN SPHINGIDAE 45 
well-defined differences, largely of color. The head, central portion of the 
thorax, fore wing and abdomen above, are of a yellowish cast, instead of 
the gray of the western form. The red of the hind wing is fainter in color. 
The dark markings on the side of the thorax, the basal, apical and other 
markings (brown) of the fore wing, and the bands of the hind wing are of 
a lighter color than in the western form. The under side of both wings 
is in general lighter. There is no special difference in size, but the form 
from southeastern Brazil seems a duller-colored insect, contrasting rather 
sharply with the brilliancy of the specimens from western South America. 
Orecta fruhstorferi sp. nov. 
Plate V, figure 4. 
Al. ant. long., 7, 34 mm. Al. ant. lat., «1,13 mm. Marg. ext., 7, 
22 mm. 
Locality— Venezuela. One male in coll. B. Preston Clark, given by 
Mr. Jacob Doll, who obtained it from Mr. Fruhstorfer in exchange. 
A more strongly marked and darker-colored species than O. lycidas. 
The markings of both the fore wing and hind wing above are chocolate- 
brown, contrasting strongly with the light brown of the fore wing and the 
reddish brown of the hind wing of lycidas. 
Fore wing, above: The sub-basal spots are inclined more distad than in 
lycidas. Instead of being light brown with a few darker markings, it is 
largely chocolate-brown with a light area along the basal half of the costal 
margin, a triangular spot at the apex, and a submarginal area toward the 
hinder angle between R3 and M2. The stigma is large, black, balloon- 
shaped, with the point toward the costal margin, and 3 mm. in length. A 
very distinct dark brown marginal band, widest at R2 (4 mm.) and crenate 
at the veins within, extends from the apex to the hinder angle. Outer 
margin is slightly crenate at the veins. Ciliae dark brown. 
Hind wing, above: A dark brown sub-anal area, enclosing two trans- 
parent dots, and extending half-way up the anal margin. From this area a 
lunulated band, nearly parallel to the outer margin but trending away from 
it, extends to R1. And from the inner angle of this area a faint line extends 
to the middle of the inner wing margin. Very narrow dark brown marginal 
band. Ciliae white. 
Fore wing, below: Dark yellow in tone. The ash-gray marginal band 
is well marked, as is the stigma. Marginal band loses its crenate character 
