The Dock Leaf Bug (Coreus marginatus) is a medium-sized insect in the Coreide family of squash bugs and leaf-footed bugs. It is also known as the Brown Squash Bug.
The adult Dock Leaf Bug is light mottled brown with a broad oval abdomen. Its lower abdomen has a lighter amber-brown, oval-shaped marking. At the front of its head, it has two thorns, called antenniferous tubercles, between its dark-tipped, four-segmented antennae. Other squash bugs don’t have these thorns.
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