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Plutella xylostella (click on image to enlarge it)
Author(s): David Cappaert, Michigan State University
Source: IPM Images

Plutellidae (diamondback moths)

The family contains several hundred species. The adults are medium-sized moths with a wing-span of 10-50 mm. Economically, the most important pest is the diamondback moth (Plutella xylostella).

The species of Plutellidae are closely related to those of the Yponomeutidae and the Tineidae. The forewings are elongated. The labial palpi are large and directed forward, in contrast to the Yponomeutidae which have upturned labial palpi. The maxillary palpi are short and 4-segmented.

The following genera and species are currently entered under Plutellidae: