INSECTS. 193 



Miller its scientific name is Arctia Virginica. " It is 

 white, with a black point on the middle of the fore wings, 

 and two black dots on the hind wings, one on the middle 

 and the other near the posterior angle, much more distinct 

 on the under than on the upper side ; there is a row of 

 black dots on the top of the back, another on each side, and 

 between these a longitudinal 'deep yellow stripe ; the hips 

 and thighs of the fore legs are also ochre yellow. It ex- 

 pands from one inch and a half to two inches. Its eggs 

 are of a golden yellow color, and are laid in patches upon 

 the leaves of plants. 



HOG CATERPILLAR. Chcerocampa Pampinatrix. 



Fig. 73 shows this cater- 

 pillar covered with cocoons 

 of a parasitic insect that lays 

 its eggs upon it. When these 

 eggs hatch, the larvae from Fig. 73. 



them feed upon the caterpillar and usually kill it. 



Fig. 74 shows the parasite's natural size, also one that is 

 highly magnified. The caterpillar is usually most abund- 

 ant about midsummer, and when fully 

 grown it descends to the gronnd, con- 

 ceals itself under fallen leaves, which it 

 draws together by a few threads, so as 

 to form a kind of cocoon, or covers itself 

 with grains of earth and rubbish in the Fig. 74. 



same way, and under this imperfect cover it changes to a 

 pupa or chrysalis (Fig. 75), and finally appears in the 

 winged state in the month of July 

 of the following year. The moth 

 expands from two and a half to 

 three inches, is of an olive gray Fi s- ' r5 - 



color, except the hind wings, which are rust-colored, and 

 the fore wings and shoulder covers are transverse, with 







