LEPIDOPTERA. 211 
dotted with black. At its extremity is a yellow horn, curved 
back like a hook, and covered with tubercles. The head is green 
and marked laterally with a black stripe. It lives chiefly on the 
potato, and the Lycium barbarum, sometimes called the tea-tree, 

Fig. 195.—Chrysalis of the Death’s-head Hawk-moth. 
a shrub belonging to the Solanacee. It buries itself in the earth 
to change into a chrysalis (Fig. 195) of a bright chestnut brown. 
We will mention stillfurther, in the family of the Sphingide, 
three species of the genus Smerinthus, which fly heavily and by 
twilight. 
The Lime-tree Hawk-moth (Smerinthus tilie, Fig. 196) has its 
upper wings grey with some shades of green, and moreover, in the 

—F i ay iy, = 
¢ 
Fig. 196.—Lime Hawk-moth (Smerinthus tite). 
middle of the wing, an irregular band of a brownish green colour, 
The thorax covered with hairs is grey, with three green longitu- 
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