The most famous successful example was the introduction of the gray moth, Cactoblastis cactorum, into Australia to control the prickly pear, Opuntia inermis, which was overrunning vast tracts of land.
By a seeming fate, commonly called necessity, they are employed, as it says in an old book, laying up treasures which moth and rust will corrupt and thieves break through and steal.
Some adult moths don't even eat as adults since they aren't born with mouths, which is the most extreme way to avoid food competition, and another tally in the " Silence of the Lambs" column.
Some of the moths they predate have therefore evolved a " stealth coat" - made of tiny hairs and a layer of scales - that reduces their detectability through echolocation.
The lantern, dangling from Christian's hand, brushed the feathery fronds in passing by, disturbing moths and other winged insects, which flew out and alighted upon its horny panes.
Caterpillars are important just because they're such cool animals, but they also are a phase of the life cycle of lepidopteran, so moths and butterflies.
Scientists found that more than 45 percent of the moths they studied had visited dozens of different plant species during the night, including some that bees and butterflies didn`t visit during the day.