"COW-SPIT, SNAKE-SPIT, AND FROG-SPIT" 89 
eludes to trust the spring. Here, then, is one of 
the host of midgets who are responsible for our 
soiled garments in our summer walks the " frog- 
hopper," or "spume-bearer," in his perfection. The 
round of his life is thus given in Harris's beautiful 
volume, " Insects Injurious to Vegetation": 
" The ' frog-hoppers ' pass their whole lives on 
plants, on the stems of which their eggs are laid 
in the autumn. The following summer they are 
hatched, and the young immediately perforate the 
bark with their beaks, and begin to imbibe the 
sap. They take in such quantities of this that it 
oozes out of their bodies continually in the form 
of little bubbles, which soon completely cover up 
the insects. They thus remain entirely buried 
and concealed in large masses of foam until they 
have completed the final transformation, on which 
account the names of cuckoo-spittle, frog-spittle, 
and frog-hopper have been applied to them. The 
spittle in which they are sheltered may be seen in 
great abundance during the summer on the stems 
of our alders and willows. In the perfect state 
they are not thus protected, but are found on the 
plants in the latter part of summer fully grown, 
and preparing to lay their eggs. In this state 
they possess the power of leaping in a remarkable 
degree, and for this purpose the tips of their hind 
shanks are surrounded with little spines." 
The "spume-bearer" (Aphrophora) this insect 
