33 § 
THE STUDY OF INSECTS. 
wings are black with a central reddish band. The larva is 
extremely variable in color and markings. It feeds on many 
plants, among which arc apple, grape, plum, and currant. 
Fig. 415 .—Deilephila litieata. 
The Thysbe Clear-wing, Hemaris thysbe (He-ma'ris 
thys'be).—There is a group of Hawk-moths that have the 
middle portion of the wings transparent, resembling in 
this respect the Sesiidse and certain Zygaenids; but they 
are easily recognized as Hawk- 
moths by the form of the 
body, wings, and antennae. 
One of the more common of 
these is the Thysbe Clear- 
wing (Fig. 416). The scaled 
portions of the wings are of a 
dark reddish brown ; but this 
Fig. 416 .—Hemaris thysbe. • • . 
species is most easily distin¬ 
guished from our other common species by a line of scales 
dividing the discal cell lengthwise and representing the po¬ 
sition of the base of vein V. The larva of this species feeds 
on the different species of Viburnum, the snowberry, and 
hawthorn. 
The Bumblebee Hawk-moth, Hemaris diffinis (He-ma'ris 
dif-fi'nis).—This Clear-wing appears to be about as common 
I 
