336 
THE STUDY OF INSECTS. 
ish gray instead of ashy gray; at the end of the discal cell of 
the fore wings there is a distinct white spot; and the two 
dark bands crossing the middle of the hind wings are not 
zigzag, and are less distinctly separate; often they are 
united into a single broad band. 
The Hog-caterpillar of the Vine, Ampelophaga myron 
(Am-pe-loph'a-ga my'ron).—There is a group of Hawk 
moths the larvae of which have the head and first two 
thoracic segments small, while the two following segments 
are greatly swollen. These larvae from a fancied resemblance 
to fat swine have been termed Hog-caterpillars; and the 
present species, which is common on grape, has been named 
the Hog-caterpillar of the Vine. It is a comparatively 
small species, the full-grown larva being but little more 
than two inches long. There is a row of seven spots varying 
in color from red to pale lilac, each set in a patch of pale 
yellow, along the middle of 
the back. A white stripe with 
dark green margins extends 
along the side from the head 
Fig. 413 .—Atnpclofihaga n.yron, larva with t0 tlle CaUtlal ll0rn > and be ' 
cocoons 01 parasites. low tlii s are seven oblique 
stripes. This larva is often infested by Braconid parasites; 
and it is a common occurrence to find one of them with the 
cocoons of the parasites attached to it (Fig. 413). The 
pupa state is passed on the surface of the ground within a 
rude cocoon made by fastening leaves together with loose 
silken threads. The adult expands about two and one 
fourth inches. The fore wings are olive-gray, with a curved, 
olive-green, oblique band crossing the basal third, a discal 
point of the same color, and beyond this a large triangular 
spot with its apex on the costa and its base on the inner 
margin. 
The Pandorus Sphinx, Philampclus pandoras (Phi-lam'pe- 
lus pan-do'rus).—This magnificent moth expands from four 
to four and one half inches. The ground-color of its wings 
