846 [Assembly 
like a garter, and as its wings are also banded, the name perisceli- 
dactylus or Gartered Plume, may appropriately be given to it. 
Like other species of this family, this moth is very agile, rapid, 
and impetuous in its motions, when disturbed, bounding from 
side to side of the cage in which it is confined, almost with the 
velocity of lightning, for a moment, and then resting, clinging 
with its four anterior feet to the top of the cage, its wings spread 
and its body hanging perpendicularly downwards and swinging 
to and fro with the wind, with its long hind legs extended as if to 
protect the sides of the abdomen, and the feet nearly in contact 
below its tip. It is of a tawny yellow color, the fore wings with 
three white spots and beyond these two white bands, the fringe 
white with a blackish spot on the middle and another on the apex 
of the inner margin. 
This moth measures 0 35 to the tip of its abdomen, and its wings expand 0.85. Its 
antenna; are 0.20 long, black, with a row ot small white spots on each side running 
their whole length. The palpi, which curve upwards in front of the head to a level 
with its crown, resembling two little horns, are taivny brown or rust-colored in front, 
their base3 whitish. The thorax is tawny yellow, white at its base. The three first 
segments of the abdomen have a white spot at their bases and the third has two 
diverging white stripes which reach its apex. The fourth segment is without spots 
and of a darker color, its apex blackish. The remaining segments have two parallel 
white stripes which are faint or obsolete on the base of each segment. Beneath, the 
abdomen is snowy white with two tawny yellow stripes, or tawny yellow with three 
rows of large white spots confluent into stripes at the base. Legs white; haunches 
with a tawny yellow stripe on their outer side; four anterior legs with black stripes; 
middle shanks with a projecting spine-like tuft of tawny yellow scales above t.,eir 
middle, and encircled at tip by a darker colored tuft; hind shanks with a similar tuft 
at each pair of spines; spines black beneath and at base, those of the hind shanks 
black at their tips also. Feet white, apical joints of the four anterior ones, and a 
band on the apex of each of the other joints tawny yellow. Fore wings bifid, the 
cleft reaching almost to their middle, tawny-yellow, with two oblique white bands 
crossing both their forks, the space between these bands often rusty brown; a trans¬ 
verse white spot at the commencement of the cleft, edged on its inner side with rusty 
brown; two white spots inside of this, the first towards the crater the second upon 
tbe inner margin. Fringe white with a blackish spot on the middle and a laiger one 
at the apex of the inner margin. The inner lobe of the wing between the black spot 
and its tip notched in the form of a semicircle, with a blackish line upon the base of 
the fringe in this notch. Hind wings trifld, the anterior cleft reaching their middle, 
the posterior one extending to the base; rusty brown, tawny yellow at base; hind 
lobe slender, white and frmged with white with a broad blackish band near its tip. 
