﻿152 CLEMENS' SYNOPSIS OF 



before it, and a more decided row behind, near the posterior margin. Posterior wings black, with a row 

 of central, pale testaceous, triangular spots, and a narrow terminal border of the same hue. 



Undersurface of the wings, disc of the anterior blackish, and thence rufescent brown ; posterior wings 

 rufescent brown, with two lines of dark brown dots. 



Collection of Acad. Nat. Sciences, Philadelphia. 



Geographical distribution. — Mexico. 



§ Hind border of anterior wings, nearly straight. 

 38. C. Versuta. 



Head and thorax brown. Abdomen broWn, with black rings between the basal segments and a black 

 spot on each side of the basal segment. Anterior wings brown with a faint wavy line and narrow band 

 across the middle of the disc, somewhat deeper brown ; discal spot small and dark brown ; an oblique 

 brownish band extending from the origin of subcosto-inferior vein toward the inner angle, followed by two 

 short lines of the same hue ; a blackish brown, irregular, wavy line, extending from the costa near the 

 origin of the post-apical vein to inner margin above the angle, and another of the same hue joining it by 

 an angle on the disco-central vein, and extended very irregularly from near the tip to the inner angle, and 

 shaded toward the hind margin of the wing with dark brownish. Posterior wings dark brown, dull green- 

 ish at the base, with an irregular, central, luteous band, tinged with orange. 



Collection Acad. Nat. Sciences, Philadelphia. 



Geographical distribution. — Mexico. 



AMBULYX Boisd. 



Body rather slender or hardly stout. Head prominent, conical, obtuse. Proboscis 

 long. Antennse minutely serrated. Abdomen long, oblanceolate. Legs slender; 

 hind tibiae with four very long spurs. Wings narrow and very long, especially in the 

 typical species, A. strigilis. Fore wings slightly curved in front toward the tips, 

 which are acuminated; exterior border excavated by the tip, nearly straight, and 

 extremely oblique from thence to the interior angle, where the interior border forms 

 an inward curve ; second inferior vein {superior) nearly twice further from the third 

 [posterior) than from the first, {disco-central) ; third more than twice further from the 

 fourth than from the second. Hind wings somewhat emarginate along the exterior 

 border. Walker. 



SPECIES. 



40. Strigilis. — Hind wings luteous or pale orange, with three angulated, central, brown lines. 



41. Ganascus. — Hind wings roseate, with a central and two subterminal, blackish brown bands. 



40. A. Strigilis. — Sphinx strigilis Linn. Mant. I. 538. Drury, I. 62, pi. 28, f. 4. Cramer, II. 14, pi. 106, 



f. B. Fabr. Sp. Ins. II. 144, 22 ; Mant. Ins. II. 95, 25 ; Ent. Syst. III. 1, 364, 26. Gmel. Syst. 



Nat. I. 5, 2377, 66. Pholus strigilis Hubner Verz. Schmett, 134, 1437. Ambulyx strigilis Walker, 



p. 121. 



Pale fawn-color, luteous beneath. Head with a furcate ferruginous brown spot between the antennae 



and thorax, with two large lateral patches of the same hue. Antennae white. Abdomen with a brown 



dorsal line and oblique brown lateral streaks, edged with testaceous. Anterior wings fawn-color, with 



separated, oblique ferruginous streaks on the costa, four abbreviated, wavy blackish brown lines crossing 



