SLUG-CATERPILLARS. 101 
with brown, pale beneath, the sides raised, and the dorsal 
surface flattened. Late in autumn it formsa tough, rounded, 
oval cocoon. The moth appears in June; it deposits the 
eggs singly, and the larva often live on the upper side of the 
leaves. The caterpillar of this species is also a rather general 
feeder, being found upon apple, plum, cherry, hickory and 
oak. It is such a curious being that a more detailed descrip- 
tion of it is quoted from H. Edwards and Elliot. ‘“‘Ground- 
Fig. 99.—Limacodes scapha Harr. 
color pale apple-green. The segments extended laterally in 
the middle of the body, and raised into an elevated ridge, 
sharp and angular at the edges. The flattened portion, 
which includes the dorsal region, is chestnut brown, darker 
onthe margins. There is also a darker dorsal stripe. The 
segments are arranged like the plates of a tortoise. The 
latter region is of a pale yellowish-green, with an oval white 
spot on segments 9 and 10. Spiracles pale brown, mouth 
parts also brown. In some specimens the brown color of 
the back is reduced to small patches, and occasionally a yel- 
low dorsal line is present, the ground color (pale-green) then 
prevailing. Length 0.85, width 0.25 inch. 
“The moth is light cinnamon brown; on the fore-wings 
the costa-median region is filled in with a large tan-brown 
triangular spot, ending on the tip of the wing, and is lined 
externally with silver. Expanse of wings, 26 to 28 mm.”’ 
Moth and caterpillar are shown in Fig. 99. 
