The Yponomeutids
What are they?
These rather small moths often feed communally as larvae and some are pest species on agricultural crops. Some are brightly-colored and fly during the day, when they can be seen feeding at flowers.
Identification
Tiny to small moths, some of which may require a hand lens to aid identification. Wings are tent-folded but also slightly rolled, giving a somewhat cigar-shaped appearance to some of the moths. Several species rest with the head down and back end lifted up at an angle to the surface. Most species are readily identified by wing markings, though some of the white 'ermines' can be tough to sort out from each other.
02366 Diamondback Moth Plutella xylostella
Length: 7-8mm. Flight Time: April-October. Larval Food: Members of the mustard family(Brassicaceae).
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02401 Ailanthus Webworm Atteva punctella
Length: 9-15mm. Flight Time: March-November. Larval Food: Tree-of-heaven (Ailanthus altissima).
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02420 American Ermine Yponomeuta multipunctella
Length: 10-13mm. Flight Time: June-July. Larval Food: Spindle bushes (Euonymus spp.).
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