Giant Resin Bee

Subject: What’s this bee?
Location: North Sutton NH
July 10, 2013 8:14 am
Found this insect on milkweed with my honey bee’s. Appeared to be just resting. Has large mandible’s on the front. Never seen this one before.
Signature: NH Bee

Giant Resin Bee
Giant Resin Bee

Dear NH Bee,
This is a Giant Resin Bee, Megachile sculpturalis, and it is an introduced species native to Asia.  According to BugGuide:  “They are opportunistic and nest in existing wooden cavities, rather than excavating their own. Effectively pollinate kudzu, another invasive species.
Aggressive, it attacks other bees; it has been reported killing honey bees.”

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BugMan aka Daniel Marlos has been identifying bugs since 1999. is his passion project and it has helped millions of readers identify the bug that has been bugging them for over two decades. You can reach out to him through our Contact Page.

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