cactus moth

noun

Definition of cactus moth

: a moth having a larva that feeds on cactus specifically : a small whitish or yellowish moth (Cactoblastis cactorum) with dusky markings the larva of which is an orange-red gregarious borer that invades and consumes prickly pear — see cactoblastis

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First Known Use of cactus moth

1947, in the meaning defined above

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Cite this Entry

“Cactus moth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cactus%20moth. Accessed 29 Nov. 2020.

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