GRAPE VINE, LEAVES — GARTERED PLDME. CHRYSALIS. 141 



Blight toolh upon its posterior face, and two short diverging cluh-shaped white 

 bristles. Lower down upon the sides is a row of slight oblong elevations, one on 

 each segment, below which the breathing pores form a row of minute round points, 

 and below these an obtuse angular edge divides the lateral from the under side. On 

 the under side are four longitudinal rows of short while club-shaped bristles, inclined 

 backwards, two bristles at each point. Between the two inner rows of the.'se bristles 

 are two lows of small, elevated, wart-like pimples, whith are the scars left by the 

 pro-legs of the larva. The legs, antennae and wings are enclosed aj paren'ly in a 

 common sheath,, the forked veins of these last foiming faint elevated lines upi n Ihe 

 smooth onter part of the sheath. The ciysalis varies in color. One of the specimens 

 was bright pale green with a deeper green stripe aloi g the middle of the back, and 

 the long horns and a spot on the crown of ihe head dull brownish yellow. The other 

 was pale brownish yellow throughout, with a black stripe along its middle. 



These insects remained at rest in their pupa state only ?ix and 

 eight dajs when they hatched moths, pertaining to the genus 

 Pteropkorus in the family ALUciTiD.a; and the older Lepibopteea. 

 The moths of this family are distinguished from all others by 

 having their wings singularly cleft into two, three or, more long 

 narrow lobes, whence they were termed Fissipennes or Split- 

 winged moths by Latreille. The lobes are densely ciliated with 

 fine hairs, which, along their inner margins are very long. They 

 thus resemble the featl^ers of a bird, and have hence in English 

 received ihe name of Plumes. Their legs are long and slender, 

 and are furnished with long robust spines, of which there is a 

 single one at the tip of the forward shanks, and a pjiir at the 

 tip of the middle shanks, whilst the hind ones have a pair at their 

 tips and another near the middle. 



The names of all the species belonging to this family are com- 

 pounds ending with the word dactylus, meaning a finger; Lin- 

 DEBus at first, when but "a half dozen species were known to him 

 (Systema Naturae, 10th edition, 1758), having suppo;ed they 

 could all be distinguished merely by the number of the 

 branches of their wings, he hence numbered Ihem two-fingered, 

 five-fingered, &c.; and at a later period, when two or more 

 species were discovered which were alike in the number of 

 their lobes, he named these wing-fingered, square fingered, &c. 

 The species of which we are speaking, at each pair of spines, has 

 tufts of scales of a tawny }ellow color surrounding its hind legs 



