SPHINGIDM. 71 



nervures, which are reddish-black and distinct ; hind margin 

 broadly banded with dark red-brown, or glistening dark red 

 scales on a blackish ground, the band broadest at the apex of 

 the wing and tapering very slightly, yet extending past the 

 anal angle ; costal margin blackish brown, dusted with yellow 

 towards the base : touching it is an oblique elongated reddish- 

 black spot at the end of the discal cell ; base of the wings 

 reddish-black densely covered with long yellowish scales ; 

 from this a rapidly tapering stripe of the same runs along the 

 dorsal margin. Hind wings transparent, with reddish-black 

 nervures, a dark red-brown stripe along the hind margin ; 

 base and dorsal margin broadly reddish-black, densely covered 

 with long, dull yellow scales. Cilia all very short, dark red. 

 But when freshly emerged from the pupa, and before flight, 

 every specimen has the whole surface of the wings covered 

 with large loose dark red scales, which in the broad central 

 portions of the wings are so loosely attached that they are 

 shaken off at the first flutter. These scales give the speci- 

 mens which have been killed before flight a dusky, semi- 

 transparent appearance. 



Under side of all the wings broadly yellow at the base and 

 along the costa, with the hind margin broadly banded with 

 dark red, and the transparent surface brilliantly shot with 

 iridescent red. Face, legs, and underpart of the thorax pale 

 yellow ; of the abdomen reddish, mixed with yellow and 

 black towards the tail. 



Sexes similar and apparently not variable. 



On the wing in May and June. 



Larva one inch and two-thirds in length. Cylindrical, 

 except that the anterior segments taper a little to the head, 

 which is small ; body smooth, though the usual wrinkles on 

 the segments are visible ; horn on the twelfth segment rather 

 rough, but sharply pointed and curved back. Head dark 

 green ; body a beautiful clear green, rather whiter on the 

 back, with darker green dorsal line, which is only visible at 



