Cuckoo spit


  • Webster's Revised Unabridged Dictionary
    • Cuckoo spit (Zoöl) A frothy secretion found upon plants, exuded by the larvae of certain insects, for concealment; -- called also toad spittle and frog spit.
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In literature:

After sojourning for a time in the cuckoo-spit, the frog-hopper becomes a winged insect.
"The Outline of Science, Vol. 1 (of 4)" by J. Arthur Thomson
Cuckoo spit: liquid in the form of bubbles produced by members of the family Cercopidae and which often conceals the producer.
"Explanation of Terms Used in Entomology" by John. B. Smith