34 Farmers’ Bulletin 1220. 
THE ACHEMON SPHINX.*7 
A caterpillar known as the Achemon sphinx is often inquired 
about, as it is commonly found on grape, It is this species which 
caused the serious injury in California in 1919, already mentioned. 
When young the larva is light green in color, with a conspicuous 
brown, horn. The full-grown larva, however, which is about 3} 
inches long, is of a straw or reddish-brown color, varying often to 
pinkish, with six diagonal cream colored stripes along each side, 
and the horn is replaced by a conspicuous eye spot inclosing a dark 
spot (fig. 35). 
THE HOG CATERPILLAR." 
Another common hornworm of the grape is the so-called hog 
caterpillar. The larva measures about 2 inches in length, is green 
Fig. 85.—The ‘Achemon sphinx. 
in color, marked with small yellowish dots, and on each side with 
seven oblique stripes. From the horn to head along the back is on 
each side a wide dark green stripe. There are a number of broods 
each year and larve of the later broods are likely to be pinkish in 
color. The hog caterpillar is said to be very voracious, a Yew 
larve when nearly grown being capable of completely defo)ating 
vines, and they are accused of biting into the stems. 
THE WHITE-LINED SPHINX.” 
The white-lined sphinx also attacks the grape and numerous other 
plants. It likes parsley, on which it multiplies, later attacking the 
grape. The larva is about 14 inches long, varying much in color 
and markings. Some are yellowish green, while others are almost 
black with markings along the sides and a yellow line along the 
dorsum. 
17 Pholus achemon Drury. %Ampelophaga myron Cramer, *” Deilephila lineata Fab. 
