HAWK-MOTHS. 33 
yellow; nor does it assume the usual attitude of a shinx by 
holding up the head, but rests stretched out at full length 
upon atwig. If disturbed it will throw its head from side 
to side, producing at the same time a crepitating sound. 
_ The pupa is formed most frequently in a little cavity on 
the surface of the ground, or is simply hidden under a few 
dead leaves or other rubbish loosely fastened together with 
threads of silk, in which are mixed grains of earth. The 
pupa, about aninch and a quarter long, is of a blackish or 
dark brown color, roughened by confluent punctures, but 
between the lighter colored joints it is smooth. The head- 
case is broad and rounded; the tongue-case does not pro- 
ject; and the tail terminates in a rough, flattened and 
wedge-shaped point, from which extend two minute horns. 
The adult insect remains in the ground until the follow- 
ing spring, hence we have but a single annual generation. 
The peculiar moth, measuring with expanded wings about 
two and a half inches across, is of a dull chocolate or gray- 
ish-brown color. The front-wings are lighter beyond the 
middle, and are variegated with brown. The hind-wings 
are sulphur-yellow, with a broad, dark brown border break- 
ing into a series of short lines on a flesh-colored ground as it 
approaches the body. The wings are very deeply scalloped, 
especially the front ones. The body, which is curved up- 
wards when the insect is at rest, is furnished with tufts 
along the sides near the extremity. Ifthe insect should ever 
become common, it is easily kept in check by hand-picking. 
A number of small parasites seem to make it their business 
to keep it from increasing. 
This insect is shown in Fig. 32, Plate V. 
Deidemia inscripta Harris. 
This is a very uncommon hawk-moth, not alone in 
Minnesota but everywhere, and although it feeds as a cater- 
pillar on the grape-vine and Virgimia-creeper, it is not apt 
