NORTH AMERICAN I.EPIDOPTERA. 169 



59, Sphinx; Grt, Pr. Ent. Soc. Phil, v 68, Sphinx; G. & R., Pr. E. S. Phil. v. 

 162, Macrosila; Bd., Sp. Gen. Lep. Het. i, 82, Sphinx; Grt., Buff. Bull, iii, 

 224, Phlegethontius ; Butl., Trans Zool. Soc. Loud. ix. 606, Protoparce ; Gund- 

 lach, Cont. Ent. Cuba, 208, Macrosila ; Grote, Hawk Moths 40, Phlegethon- 

 tius ; Edw.,® Ent. Amer. iii, p. 164. 



chionanthi A. & S.,* Ins. Ga. i, 67, pi. 34, Sphinx : Hiib , Yerz. 139, Acherontia ; 

 Duncan,* Nat. Lib. 37, p. 100, pi. 5, fig. 2, and pi. 6, fig. 2, Sphinx ; Grt , and 

 Eob., Pr. E. S. Phil. v. 63, pr. syn. 



Head, thorax and primaries above, blackish or ferruginous brown, marked 

 with black and white. Palpi white, except at tip. Head with a transverse, in- 

 terantennal white line, and a white spot behind base of autennaj. Thorax with 

 a gray dorsal line, with a median blackish tufting which is white margined ; 

 metathoracic tuftings black, anteriorly margined with white or gray. Tegulae 

 at base of wings white. Abdomen paler brown than thorax, with a more or less 

 evident black dorsal line and a series of white spots on the hind margins of seg- 

 ments subdorsally ; laterally a series of three large, round, orange spots margined 

 with black; the other segments rather irregularly and variably marked with 

 black and white. Primaries white marked at base; within the small, triangular, 

 white discal dot. is a series of four zigzag brown lines, the intervals between 

 first and second, and second and third, white ; the lines are but slightly sinuate 

 and scarcely bend outwardly over the cell ; the fourth line is somewhat more 

 remote from the other, and is darker, more nearly black. Below vein two and 

 beyond these lines the inner margin is heavily powdered with white. Beyond 

 the cell is an irregularly dentate, black, transverse line outwardly bent from 

 costa, then incurved to within the middle of the hind margin. Beyond this is 

 a series of three black, dentate, transverse lines, the intervals white, and between 

 the second and third the centre of the interval is filled with a yellowish brown 

 shade ; of these lines the first and second are rather close together and parallel ; 

 the third is remote from the others, and is very irregularly lunulate and angu- 

 lated. A subterminal, dentate, white line not reaching the costa. and outwardly 

 and irregularly black margined. Anal angle white, the subterminal space oppo- 

 .site the cell strongly white marked to margin. A sinuate, oblique, apical line, 

 superiorly white marked. Fringes cut with white. Secondaries blackish brown, 

 white marked at base ; an obscure whitish band near base ; two obscure, black, 

 median lines, followed by a variably distinct white shade. Marginal space more 

 or less strongly white and yellow marked. Beneath, primaries deep ash gray, 

 powdery, with the extra discal series of transverse lines of upper side faintly 

 reproduced. Secondaries paler gray, with a broad, deep, ashy brown, outer mar- 

 gin, disc crossed by three parallel, dentate, transverse lines. Expands 3.50 — 5 

 inches; 87—125 mm. 



Hab. — New York and southward into South America ; Texas. 



This species is very characteristically marked and not easy to mis- 

 take. The chief variation is in the distinctness of maculation, in 

 the amount of Avhite powdering, and in the depth of color — a vari- 

 able quantity bye-the-by — since fresh specimens are usually very 

 deep, blackish brown ; age renders them a rather light rusty red. 



TRANS. AMER. ENT. SOC. XV. (22) AUGUST, 1888 



