Black Carpenter Ant in Carroll Co., Maryland (6/22/2024). Verified by Oliver Yung/BugGuide.

View Record Details Photo by Barbara Speckart MBP List

A Black Carpenter Ant in Prince George's Co., Maryland (4/7/2020). Verified by James Trager.

View Record Details Photo by Barbara Thurlow MBP List

A Black Carpenter Ant in Worcester Co., Maryland (4/11/2015). Determined by Benjamin A. Coulter.

View Record Details Photo by Mike Burchett MBP List

<em>Camponotus pennsylvanicus</em> specimen. Contributed by <a href='https://www.antweb.org/bigPicture.do?name=casent0103692&shot=p&number=1'>April Nobile</a>. (Photo ID: 73917 - Psn: 30)

Camponotus pennsylvanicus specimen. Contributed by April Nobile.

View Record Details Photo by AntWeb Data MBP List

A Black Carpenter Ant in Frederick Co., Maryland (5/19/2015). Verified by James C. Trager/BugGuide.

View Record Details Photo by Mark Etheridge MBP List

Black Carpenter Ant in Prince George's Co., Maryland (6/20/2023). (c) Adrienne van den Beemt, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 1179362 - Psn: 44)

Black Carpenter Ant in Prince George's Co., Maryland (6/20/2023). (c) Adrienne van den Beemt, some rights reserved (CC BY).

View Record Details Photo by Adrienne van den Beemt MBP List

Female Black Carpenter Ants in Baltimore City, Maryland (7/28/2015). Determined by Adam Lazarus.

View Record Details Photo by Thomas Wilson MBP List

Black Carpenter Ant in Baltimore Co., Maryland (5/28/2021). (c) Frode Jacobsen, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1159408 - Psn: 45)

Black Carpenter Ant in Baltimore Co., Maryland (5/28/2021). (c) Frode Jacobsen, some rights reserved (CC BY-NC).

View Record Details Photo by Frode Jacobsen MBP List

A Black Carpenter Ant in Prince George's Co., Maryland (10/12/2014).

View Record Details Photo by Jesse Christopherson MBP List

A Black Carpenter Ant in Charles Co., Maryland (5/31/2020). Determined by James C. Trager and A. W. Thomas/BugGuide.

View Record Details Photo by Jim Moore MBP List

A Black Carpenter Ant in Baltimore City, Maryland. Determined by Richard Vernier/BugGuide.

View Record Details Photo by Thomas Wilson MBP List

Black Carpenter Ant in Anne Arundel Co., Maryland (Date obscured). (c) Timothy Reichard, all rights reserved. (Photo ID: 263936 - Psn: 77)

View Record Details Photo by Timothy Reichard MBP List

Black Carpenter Ant in Prince George's Co., Maryland (9/21/2024). (c) epic2112, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1167839 - Psn: 77)

Black Carpenter Ant in Prince George's Co., Maryland (9/21/2024). (c) epic2112, some rights reserved (CC BY-NC).

View Record Details Photo by epic2112 via iNaturalist MBP List

Black Carpenter Ant in Montgomery Co., Maryland (6/10/2024). (c) Adrienne van den Beemt, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 1209576 - Psn: 77)

Black Carpenter Ant in Montgomery Co., Maryland (6/10/2024). (c) Adrienne van den Beemt, some rights reserved (CC BY).

View Record Details Photo by Adrienne van den Beemt MBP List

Black Carpenter Ant in Baltimore Co., Maryland (9/6/2020). (c) Zachary Wimberly, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 1190490 - Psn: 108)

Black Carpenter Ant in Baltimore Co., Maryland (9/6/2020). (c) Zachary Wimberly, some rights reserved (CC BY).

View Record Details Photo by Zachary Wimberly via iNaturalist MBP List

Black Carpenter Ant in Baltimore Co., Maryland (9/6/2020). (c) Zachary Wimberly, some rights reserved (CC BY).

View Record Details Photo by Zachary Wimberly via iNaturalist MBP List

Black Carpenter Ant in Baltimore Co., Maryland (6/8/2022). (c) Benjamin Burgunder, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 1190481 - Psn: 115)

Black Carpenter Ant in Baltimore Co., Maryland (6/8/2022). (c) Benjamin Burgunder, some rights reserved (CC BY).

View Record Details Photo by Benjamin Burgunder via iNaturalist MBP List

Black Carpenter Ant in Montgomery Co., Maryland (6/26/2021). (c) Zachary Dankowicz, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1199772 - Psn: 188)

Black Carpenter Ant in Montgomery Co., Maryland (6/26/2021). (c) Zachary Dankowicz, some rights reserved (CC BY-NC).

View Record Details Photo by Zachary Dankowicz via iNaturalist MBP List

Black Carpenter Ant in Anne Arundel Co., Maryland (10/18/2025). (c) Lisa H., some rights reserved (CC BY-NC)

View Record Details Photo by Lisa H. via iNaturalist MBP List

Black Carpenter Ant in Garrett Co., Maryland (4/15/2026). (c) Frode Jacobsen, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>) (Photo ID: 1489508 - Psn: 200)

Black Carpenter Ant in Garrett Co., Maryland (4/15/2026). (c) Frode Jacobsen, some rights reserved (CC BY-NC)

View Record Details Photo by Frode Jacobsen MBP List

Black Carpenter Ant in Montgomery Co., Maryland (6/14/2021). (c) Zachary Dankowicz, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1199774 - Psn: 255)

Black Carpenter Ant in Montgomery Co., Maryland (6/14/2021). (c) Zachary Dankowicz, some rights reserved (CC BY-NC).

View Record Details Photo by Zachary Dankowicz via iNaturalist MBP List

Map Snapshot

350 Records

GA AL WA FR CL MO HO BA BC HA CE PG AA CV CH SM KE QA CN TA DO WI SO WO

Status

An ant of various forested habitats encompassing both dry upland forests and lowland mesic forests, but also common in buildings, yards, and streets, making this a pest species in many areas. Carter (1962) also notes it from pastures and wet meadows. (See Frye et al., 2014)

Seasonality Summary

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Resources

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Citations

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Use of media featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.

Black Carpenter Ant in Carroll Co., Maryland (6/22/2024). Verified by Oliver Yung/BugGuide. View Record Details Media by Barbara Speckart.

A Black Carpenter Ant in Prince George's Co., Maryland (4/7/2020). Verified by James Trager. View Record Details Media by Barbara Thurlow.

A Black Carpenter Ant in Worcester Co., Maryland (4/11/2015). Determined by Benjamin A. Coulter. View Record Details Media by Mike Burchett.

Camponotus pennsylvanicus specimen. Contributed by April Nobile. View Record Details Media by AntWeb Data.

A Black Carpenter Ant in Frederick Co., Maryland (5/19/2015). Verified by James C. Trager/BugGuide. View Record Details Media by Mark Etheridge.

Black Carpenter Ant in Prince George's Co., Maryland (6/20/2023). (c) Adrienne van den Beemt, some rights reserved (CC BY). View Record Details Media by Adrienne van den Beemt.

Female Black Carpenter Ants in Baltimore City, Maryland (7/28/2015). Determined by Adam Lazarus. View Record Details Media by Thomas Wilson.

Black Carpenter Ant in Baltimore Co., Maryland (5/28/2021). (c) Frode Jacobsen, some rights reserved (CC BY-NC). View Record Details Media by Frode Jacobsen.

A Black Carpenter Ant in Prince George's Co., Maryland (10/12/2014). View Record Details Media by Jesse Christopherson.

A Black Carpenter Ant in Charles Co., Maryland (5/31/2020). Determined by James C. Trager and A. W. Thomas/BugGuide. View Record Details Media by Jim Moore.

A Black Carpenter Ant in Baltimore City, Maryland. Determined by Richard Vernier/BugGuide. View Record Details Media by Thomas Wilson.

Black Carpenter Ant in Prince George's Co., Maryland (9/21/2024). (c) epic2112, some rights reserved (CC BY-NC). View Record Details Media by epic2112 via iNaturalist.

Black Carpenter Ant in Montgomery Co., Maryland (6/10/2024). (c) Adrienne van den Beemt, some rights reserved (CC BY). View Record Details Media by Adrienne van den Beemt.

Black Carpenter Ant in Baltimore Co., Maryland (9/6/2020). (c) Zachary Wimberly, some rights reserved (CC BY). View Record Details Media by Zachary Wimberly via iNaturalist.

Black Carpenter Ant in Baltimore Co., Maryland (6/8/2022). (c) Benjamin Burgunder, some rights reserved (CC BY). View Record Details Media by Benjamin Burgunder via iNaturalist.

Black Carpenter Ant in Montgomery Co., Maryland (6/26/2021). (c) Zachary Dankowicz, some rights reserved (CC BY-NC). View Record Details Media by Zachary Dankowicz via iNaturalist.

Black Carpenter Ant in Anne Arundel Co., Maryland (10/18/2025). (c) Lisa H., some rights reserved (CC BY-NC) View Record Details Media by Lisa H. via iNaturalist.

Black Carpenter Ant in Garrett Co., Maryland (4/15/2026). (c) Frode Jacobsen, some rights reserved (CC BY-NC) View Record Details Media by Frode Jacobsen.

Black Carpenter Ant in Montgomery Co., Maryland (6/14/2021). (c) Zachary Dankowicz, some rights reserved (CC BY-NC). View Record Details Media by Zachary Dankowicz via iNaturalist.