CLOSED: Any idea what this large 3 inch insect is?

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happy_macomb Chevy Chase, MD(Zone 7a) Jul 12, 2008

It was perched on a tree outside my house last night. It is no longer there.

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happy_macomb Chevy Chase, MD(Zone 7a) Jul 12, 2008

Here's a shot taken a bit from the side.

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suunto Sinks Grove, WV Jul 12, 2008

This long-horned wood-boring beetle (Coleoptera: Cerambycidae) is a prionid, which includes the largest cerambycids in North America. It appears to be Prionus laticollus, the broad-necked root borer. See http://davesgarden.com/guides/bf/go/1352/ and http://www.forestpests.org/hickory/broadnecked.html for images and more information.

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happy_macomb Chevy Chase, MD(Zone 7a) Jul 12, 2008

Ick. Thanks. Mine must be pregnant, based on the photos on that link.

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