388 MISC. PUBLICATION 657, U. S. DEPT. OF AGRICULTURE 
FIGURE 76.—The fall webworm (Hyphantria cunca), nearly full-grown larvae. 
ground. When the outbreak is not widespread, the most practical 
method is to remove and destroy all webs as soon as they are discovered. 
A protective spray (p. 52) apphed at the proper time will prevent 
injury. 
The moth of Sezrarctia echo (A. & 8.) is white with the veins of 
the wings edged with dark brown or black. The wing expanse 1s about 
214 inches. The full-grown larva is about 2 inches in length, and has 
a broad, shghtly bilobed, orange-brown head. The body with the 
venter, legs, front of prothorax, and the anal segment is yellowish 
green to orange. The backs of the other segments are black, and each 
of them is crossed by two yellowish stripes and a row of orange-colored 
warts. The body is clothed in coarse hairs which, in general, are 
orange brown at the base and black at the tip. 
This species has been recorded from Alabama, Florida, Georgia, and 
Mississippi, and its food plants include sabol palmetto, persimmon, and 
ground oak. An outbreak of this insect was observed by G. W. Bar- 
ber °° in April 1933 about 15 miles north of Daytona, Fla. The high- 
way was literally covered with larvae for more than a mile, with strag- 
glers extending about 14 mile north and 2 miles south of the heavy 
/ 
® Unpublished notes. 
