May 12 

 1923 



] CLARK — THIRTY-THREE NEW SPHINGIDAE 59 



1915, and acquired by me from him. It had been deposited by him tem- 

 porarily in the Philadelphia Academy of Sciences, where my attention was 

 called to it by my friend, Dr. Henry Skinner. One male (the type) in coll. 

 B. Preston Clark. 



Antennae brown above, white' beneath. Palpi: first and second seg- 

 ments light brown, third segment dark brown. Legs wood-brown. Spines 

 of tergites light brown at the tips. Head, thorax and abdomen above, 

 dark brown. Abdomen wood-brown beneath. 



Fore wing above : Wood-brown with darker markings. Costal margin 

 curving backward strongly toward wing tip, producing an unusual wing 

 form. Distal margin strongly undulate between the veins. Cilia dark 

 brown. Dark brown subbasal spot 1.5 mm. in diameter. Narrow sub- 

 basal line extends irregularly from a point on costal margin 9 mm. distant 

 from the base to a point on inner margin 8 mm. distant from the base. 

 Posteriorly of this line two geminate antemedian lines enclose an irregular 

 dark brown band, 2 to 3 mm. in width, extending from costal to inner mar- 

 gin. A prominent dark brown circular spot within the cell at its apex, 

 3.5 mm. in diameter. An S-shaped postmedian line extends from a point 

 on costal margin, 21 mm. from wing apex in a direct line, to inner margin, 

 which it reaches 12 mm. from the hinder angle. This line is concave basad 

 from costal margin to Ml, thence convex basad to inner margin. Pos- 

 teriorly of this line, extending from Ml to inner margin, is a prominent 

 dark brown area 8 mm. in width along Ml and between Ml and M2. 

 Along M2 it broadens sharply 2.5 mm. toward distal margin, and thence 

 broadens again concavely to the hinder angle. It is 13 mm. wide along 

 inner margin. A second transverse postmedian line runs, roughly parallel 

 to the first, from the costal margin to Ml, where it is lost in the large dark 

 brown patch. A third postmedian fine extends from a point on costal 

 margin, 16 mm. distant from apex in a direct line, regularly concave basad 

 to the corner of the large dark brown area, which it reaches on Ml at its 

 exact corner. Between this third postmedian line, the wing apex and Ml, 

 is a dark brown area, its point just crossing Ml. Within this area, extend- 

 ing along the costal margin 13 mm., is a lighter, flatly triangular area, ex- 

 tending to SC5 at its basal limit, and thence narrowing to wing apex. 

 Posteriorly of M2 the wing grows gradually fighter in color. 



Fore wing beneath: Wood-brown. Cilia dark brown. A light streak 

 along inner margin. A heavy dark brown postmedian transverse line 

 duplicates the first postmedian line of the upper side; a second thinner 

 postmedian line, slightly undulate between the veins, duplicates the third 

 postmedian line of the upper side, but extends the entire distance to the 

 inner margin, which it reaches 5 mm. from hinder angle. Distally of this 

 line a dark triangle with its base, 8 mm. wide, on costal margin, has its 

 point a trifle beyond Rl. Distal margin undulate between the veins. 



Hind wing above: Cilia brown, tipped with white, prominently so 



