43 6 
The Moths and Butterflies 
Exceedingly variable in color and pattern, it is usually yellow-green with a 
conspicuous longitudinal row of elliptical spots on each side of the back. 
Fig. 626. —Larva of Smerinthus geminatus. (After Lugger; natural size.) 
each spot consisting of two curved black lines enclosing a bright crimson 
blotch and a pale-yellow line; all the spots are connected by a pale-yellow 
Fig. 627 .—Sphinx gordius. (After Lugger; natural size.) 
line edged above with black. Sometimes the larvae are black, with a 
narrow yellow line along the back and a series of paler- and darker-yellow 
