Metzneria lappella

This species is present in most of Europe[2] and it is widely distributed throughout the Palaearctic region, northwards to the Polar Circle. It is an introduced species in North America,[3] where it is found from Maine and Quebec to Florida, west to Ontario and Missouri.

These moths mainly inhabit fields, roadsides and waste places.[4]

Metzneria lappella has a wingspan of 13–19 mm.[5] The forewings are yellow with dull brown streaks. There is no definite pattern, but the brown colour is heaviest along the costa near the middle.[6]

Larva

Adults are on wing in June and July in the north of North America and from April to August in the south. In England they fly in June and July. There is one generation per year (univoltine species). The larvae feed on the developing seeds of Arctium species, including Arctium lappa and Arctium minus.[7]

The larvae have a translucent whitish body and a brown ochre head. Larvae can be found in late summer, fall, and spring. The species overwinters in the larval stage. Pupation takes place in the seedhead.

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