Few species are of economic importance though some are defoliators of fruit trees (Kalshoven 1981). Their role as defoliators of rain forest trees and seedlings has yet to be elucidated. They may have some value as an indicator group for monitoring rain forest type, and are frequently taken in light-traps set on the forest floor amid the understorey, though they are more numerous in samples made with the light overlooking the canopy.

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