The Dock Rustic…

July 7th, 2015

Resapamea passer (Dock Rustic). Photographed near Consecon, Prince Edward county, Ontario on 14 June 2015. This is generally a very scarce moth in Ontario, where it is known from a few scattered sites in the southern half. The larvae are specialists on dock (Rumex sp.) on which they bore into the stems and roots. Dock is common enough, but the moth is inexplicably scarce. In Ontario there is a single generation from mid-June to early August. Over the years I’ve caught this understated species at a few sites, including Pelee Island. It used to be regular in my Toronto backyard trap, but disappeared from the area a few years back, maybe due to the city cutting dock (and many other plants) from the edges of the laneways around my home. These days it’s a bit of a prize, easily identified by its rather plain appearance and the thick black edge to the wedge-shaped claviform spot.

Resapamea passer (Dock Rustic).

Resapamea passer (Dock Rustic).

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