42 HAWK-MOTHS. 
and strips the vine of its leaves with such rapidity that it 
soon attracts attention. When full grown it descends from 
the vine and buries itself in the ground, where it forms an 
oval cell, within which it changes to a pupa. This pupa is 
of a chestnut-brown color, with the segments roughened 
with impressed points, the terminal joint having a long, 
thick spine. The insect remains in the pupal state until the 
following summer, but occasionally it matures and escapes 
the same season. The moth is shown in Fig. 42, Plate VII. 
THE HOG-CATERPILLAR OF THE GRAPE. 
(Ampelophaga myron Cram.). 
This common caterpillar, also called the ‘‘Green Grape- 
vine Sphinx,’ is the most destructive of the horned cater- 
pillars found feeding upon the foliage of the grape. It is 
called the Green Grape-vine Sphinx because the moth, which 
expands about two and a half inches across the wings, has 
the fore-wings of a dark olive-green color, crossed by bands 
and streaks of greenish-gray, and shaded on the outer-mar- 
gin with the same hue; its hind-wings are dull red, with a 
patch of greenish-gray next the body, shaded gradually into 
the surrounding color. On the under side the red appears 
on the fore-wings, the hinder pair being greenish-gray. The 
antenne are dull white above, rosy below; head and 
shoulder-covers deep olive-green, the rest of the body of a 
paler shade of green; underneath the body is dull gray. The 
moth is shown in Fig. 43, Plate VI. 
It rests quietly during the day, takes wing at dusk, and 
is very active, having a swiit and strong flight. It darts 
rapidly from flower to flower, and is not readily captured, 
as it is a wide-awake insect. Large numbers are attracted 
to the electric lights, and the moths fly enormously long dis- 
tances to it, otherwise they could not be found at this light 
in our prairie villages, and in places where neither grape- 
vines nor Virginia creepers are grown. 
