100 CLARK — SOME UNDESCRIBED SPHINGIDAE = [PV :2.2.C- 
Amplypterus palmeri brasiliensis! Clark is, I think, not a 
good subspecies. A longer series fails to show distinguishing 
marks from the northern form. 
The specimen of Pholus satellitia intermedia Clark, figured in 
these Proceedings (Vol. VI, Plate IX, fig. 1), is a female, not a 
male. 
Oxyambulyx substrigilis wilemani R. and J. (Novitates Zo- 
ologicae, XXIII, p. 254, 1916) seems to be wrongly classed as a 
subspecies. One hesitates to question any name given from 
Tring, but O. substriglis staudingeri Roths. occurs from Manila, 
the type locality of wilemanz, and two subspecies of one species 
cannot be expected to occur in the same locality. Should not 
the form be known as Oxyambulyx wilemani ? 
It is still my belief that further investigation of the moun- 
tains of Mexico, and of South America as a whole, will add many 
new Sphingid forms. In this connection I wish to call especial 
attention to the new Gurelca here described from northern 
Mexico. This genus, heretofore, has been found only in the 
Eastern Hemisphere. 
Protoparce brontes smythi subsp. nov. 
Plate X, figure 1. 
Al. ant. long., 9, 47 mm. Al. ant. lat., 9, 22 mm. Marg. ext., 9, 
28 mm. 
Habitat.—Rio Piedras, Porto Rico. One male in coll. B. Preston Clark 
I have no specimen of P. brontes cubensis from Porto Rico, but this species 
has been noted from that island by Dewitz, Moschler, and Gundlach. The 
specimen here described is different in its general coloration and wing shape 
from P. b. brontes, P. b. cubensis, and P. b. haitensis. It is a broader- 
winged insect, and the general tone of the thorax, abdomen above, and 
fore wing, is light brown with dark brown markings, while the three other 
forms from Cuba, Jamaica, and Haiti, are white to gray, with black mark- 
ings. The dark semicircular area, with its base on the costal margin, so 
prominent in the three other forms, is, in this specimen from Porto Rico, 
of the same color as the rest of the fore wing. In general the coloration of 
1 Proc. N. E. Zoél. Club, VI, p. 44; pl. IV, fig. 3. 
