spittlebug
/ˈspɪtəbʌɡ/Definitions
1. noun
a small hemipteran insect that secretes a sticky, frothy liquid from its mouth and feeds on plant sap
“The gardeners struggled to control the infestation of spittlebugs in the crops.”
2. noun
any of various small insects related to spittlebugs
“The entomologist studied the various species of spittlebugs in the region.”