spittlebug

[spit-l-buhg] /ˈspɪt lˌbʌg/
noun
1.
the nymph of the froghopper, which surrounds itself with a frothy mass.
Origin
1880-85, Americanism; spittle + bug1
Examples from the web for spittlebug
  • Identification of the leafhopper and spittlebug vectors will be performed.
British Dictionary definitions for spittlebug

spittle insect

/ˈspɪtəlˌbʌɡ/
noun
1.
other names for the froghopper