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Eastern Carpenter Bee

Xylocopa virginica

A bumble-bee-sized bee with a bare, glossy black abdomen that tunnels its nest into wood.

beepollinatorinsectwood
A pinned eastern carpenter bee specimen in side view, showing a fuzzy thorax, glossy dark abdomen, and translucent wings.
Photo: New York State IPM Program at Cornell University · CC BY 2.0
01 / IDENTIFICATION

What to look for

  1. 01

    Abdomen shiny, black, and hairless on top — the single most reliable mark

  2. 02

    Fuzzy yellow thorax, so only the rear half looks bald

  3. 03

    Roughly 0.75–1 inch long; males often show a pale patch on the face

02 / HABITAT

Where it lives

Anywhere weathered, unpainted wood meets open flowers — decks, eaves, fence rails, barns, and gardens.

03 / BEHAVIOR

How it moves

Solitary. Females chew perfectly round entrance holes into bare wood and excavate galleries; males hover conspicuously near eaves and railings and cannot sting.

Don’t decide on color alone

Common lookalikes

Bumble bees are hairy all over, including the abdomen, and nest socially underground rather than boring into wood.

04 / FIELD ETHICS

Observe responsibly

The nest holes are the giveaway: look for a clean, round entrance about half an inch across, often with coarse sawdust below it.

Safety note

Males hover aggressively but are stingless. Females can sting and rarely do unless handled. Nest galleries can accumulate in soft wood over years — painting or sealing bare wood deters them without pesticides.

Conservation context

Common and secure, and a genuinely valuable pollinator despite its reputation — worth deterring from structures rather than killing.

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SOURCES & NOTES

Where this guide comes from

Sources are linked below. Field marks vary with age, sex, season, region, light, and viewing distance.