176 SPAN-WORMS. 
metridz. Prof. Comstock describes these worms and their 
very chacteristic actionsinthis way: ‘As children wehad the | 
dislike for ‘worms’ that is common to people that are uned- 
ucated to the beauties of nature. All larve were ‘worms,’ 
and we never thought of admiring their beautiful colors, or 
of watching them build interesting houses, or of keeping 
them until they spun their silken cocoons. But the measur- 
ing-worms were excepted from this dislike) We always 
found these delicate, greenish or yellowish caterpillars with 
their looping motion vastly interesting. We allowed them 
to measure our fingers with their little tickling feet, and we 
counted each length asa yard. We were always delighted 
with the way they had of standing on their hind legs, rearing 
the body up into the air, and moving the head around as if 
looking at the scenery. And then, if one became frightened | 
in any way, it would drop suddenly, suspended by a silken 
cord, which it had mysteriously concealed in its mouth; and 
down it would go, doubling and whirling around and 
around frantically until it reached the ground.” 
THE SNOW-WHITE EUGONIA. 
(Ennomos subsignarius Hbn.). 
This isa verycommon moth, which has long been known 
as destructive to shade trees, and especially ro the elm and 
linden. But its caterpillar feeds also upon the foliage of the 
apple, and in the south this insect has been quite destructive 
from time to time. 
The moth is pure white, spreading about an inch anda 
half across. The sexes differ in the antenre which are 
strongly pectinated and toothed in themaleand but shghtly 
soin the female. The latter deposits a large number of 
smooth irregularly ovoid eggs, slightly flattened on the 
sides, rounded at the bottom, with a depressed top with a 
whitish rim or edge, which forms a perfect oval rmg. Many 
