A Lobed Mason Wasp in Montgomery Co., Maryland (9/26/2015). Verified by Matthias Buck/BugGuide.

View Record Details Photo by Steve Scholnick MBP List

A Lobed Mason Wasp in Montgomery Co., Maryland (9/26/2015). Verified by Matthias Buck/BugGuide.

View Record Details Photo by Steve Scholnick MBP List

A Lobed Mason Wasp in Washington Co., Maryland (9/27/2014). Identified by Matthias Buck.

View Record Details Photo by Jim Brighton MBP List

A female Lobed Mason Wasp found by students at Jemicy School in Baltimore Co., Maryland (8/28/2013). This is the first photo and record of this species submitted for the project!

Photo by Emily Stanley MBP List

Lobed Mason Wasp in Baltimore Co., Maryland (7/30/2021). (c) Frode Jacobsen, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 501268 - Psn: 42)

Lobed Mason Wasp in Baltimore Co., Maryland (7/30/2021). (c) Frode Jacobsen, some rights reserved (CC BY-NC).

View Record Details Photo by Frode Jacobsen MBP List

Lobed Mason Wasp in Baltimore Co., Maryland (8/15/2020). (c) Frode Jacobsen, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 356004 - Psn: 44)

Lobed Mason Wasp in Baltimore Co., Maryland (8/15/2020). (c) Frode Jacobsen, some rights reserved (CC BY-NC).

View Record Details Photo by Frode Jacobsen MBP List

A female Lobed Mason Wasp in Baltimore City, Maryland (9/1/2009). Determined by Richard Vernier/BugGuide.

View Record Details Photo by Thomas Wilson MBP List

Lobed Mason Wasp in Montgomery Co., Maryland (9/9/2021). (c) Jane Hartman, all rights reserved. (Photo ID: 531556 - Psn: 45)

View Record Details Photo by Jane Hartman MBP List

Lobed Mason Wasp in Washington Co., Maryland (9/10/2022). (c) Frode Jacobsen, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 922388 - Psn: 45)

Lobed Mason Wasp in Washington Co., Maryland (9/10/2022). (c) Frode Jacobsen, some rights reserved (CC BY-NC).

View Record Details Photo by Frode Jacobsen MBP List

Lobed Mason Wasp in Anne Arundel Co., Maryland (9/19/2020). (c) Jim Moore (Maryland), some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 926897 - Psn: 45)

Lobed Mason Wasp in Anne Arundel Co., Maryland (9/19/2020). (c) Jim Moore (Maryland), some rights reserved (CC BY-NC).

View Record Details Photo by Jim Moore MBP List

Lobed Mason Wasp in Prince George's Co., Maryland (9/12/2021). (c) Sergei Drovetski, all rights reserved. (Photo ID: 532743 - Psn: 54)

View Record Details Photo by Sergei Drovetski MBP List

Lobed Mason Wasp in Baltimore Co., Maryland (8/15/2020). (c) Frode Jacobsen, some rights reserved (CC BY-NC).

View Record Details Photo by Frode Jacobsen MBP List

Lobed Mason Wasp in Anne Arundel Co., Maryland (9/4/2021). (c) Timothy Reichard, all rights reserved. (Photo ID: 529573 - Psn: 55)

View Record Details Photo by Timothy Reichard MBP List

Lobed Mason Wasp in Baltimore Co., Maryland (9/2/2021). (c) Frode Jacobsen, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 532764 - Psn: 55)

Lobed Mason Wasp in Baltimore Co., Maryland (9/2/2021). (c) Frode Jacobsen, some rights reserved (CC BY-NC).

View Record Details Photo by Frode Jacobsen MBP List

Lobed Mason Wasp in Carroll Co., Maryland (7/19/2023). (c) Adrienne van den Beemt, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 854303 - Psn: 55)

Lobed Mason Wasp in Carroll Co., Maryland (7/19/2023). (c) Adrienne van den Beemt, some rights reserved (CC BY).

View Record Details Photo by Adrienne van den Beemt MBP List

Lobed Mason Wasp in Howard Co., Maryland (9/16/2023). (c) Tim Frye, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 889844 - Psn: 55)

Lobed Mason Wasp in Howard Co., Maryland (9/16/2023). (c) Tim Frye, some rights reserved (CC BY-NC).

View Record Details Photo by Tim Frye via iNaturalist MBP List

Lobed Mason Wasp in Anne Arundel Co., Maryland (9/12/2021). (c) Lindsay D. Loyd, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 905844 - Psn: 55)

Lobed Mason Wasp in Anne Arundel Co., Maryland (9/12/2021). (c) Lindsay D. Loyd, some rights reserved (CC BY-NC).

View Record Details Photo by Lindsay D. Loyd via iNaturalist MBP List

Lobed Mason Wasp in Montgomery Co., Maryland (10/27/2020). (c) Jane Hartman, all rights reserved. (Photo ID: 307278 - Psn: 65)

View Record Details Photo by Jane Hartman MBP List

Lobed Mason Wasp in Montgomery Co., Maryland (10/27/2020). (c) Jane Hartman, all rights reserved. (Photo ID: 307279 - Psn: 66)

View Record Details Photo by Jane Hartman MBP List

Lobed Mason Wasp in Montgomery Co., Maryland (9/24/2019). (c) Wendy R Fredericks, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 355632 - Psn: 66)

Lobed Mason Wasp in Montgomery Co., Maryland (9/24/2019). (c) Wendy R Fredericks, some rights reserved (CC BY-NC).

View Record Details Photo by Wendy R. Fredericks MBP List

Lobed Mason Wasp in Anne Arundel Co., Maryland (9/4/2021). (c) Timothy Reichard, all rights reserved. (Photo ID: 529572 - Psn: 75)

View Record Details Photo by Timothy Reichard MBP List

Lobed Mason Wasp in Anne Arundel Co., Maryland (9/17/2016). (c) Timothy Reichard, all rights reserved. (Photo ID: 198746 - Psn: 76)

View Record Details Photo by Timothy Reichard MBP List

Lobed Mason Wasp in Howard Co., Maryland (9/1/2020). (c) acnuk, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 351093 - Psn: 78)

Lobed Mason Wasp in Howard Co., Maryland (9/1/2020). (c) acnuk, some rights reserved (CC BY-NC).

View Record Details Photo by acnuk via iNaturalist MBP List

Map Snapshot

100 Records

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Seasonality Snapshot

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

A Lobed Mason Wasp in Montgomery Co., Maryland (9/26/2015). Verified by Matthias Buck/BugGuide. View Record Details Media by Steve Scholnick.

A Lobed Mason Wasp in Washington Co., Maryland (9/27/2014). Identified by Matthias Buck. View Record Details Media by Jim Brighton.

A female Lobed Mason Wasp found by students at Jemicy School in Baltimore Co., Maryland (8/28/2013). This is the first photo and record of this species submitted for the project! Media by Emily Stanley.

Lobed Mason Wasp in Baltimore Co., Maryland (7/30/2021). (c) Frode Jacobsen, some rights reserved (CC BY-NC). View Record Details Media by Frode Jacobsen.

Lobed Mason Wasp in Baltimore Co., Maryland (8/15/2020). (c) Frode Jacobsen, some rights reserved (CC BY-NC). View Record Details Media by Frode Jacobsen.

A female Lobed Mason Wasp in Baltimore City, Maryland (9/1/2009). Determined by Richard Vernier/BugGuide. View Record Details Media by Thomas Wilson.

Lobed Mason Wasp in Washington Co., Maryland (9/10/2022). (c) Frode Jacobsen, some rights reserved (CC BY-NC). View Record Details Media by Frode Jacobsen.

Lobed Mason Wasp in Anne Arundel Co., Maryland (9/19/2020). (c) Jim Moore (Maryland), some rights reserved (CC BY-NC). View Record Details Media by Jim Moore.

Lobed Mason Wasp in Baltimore Co., Maryland (8/15/2020). (c) Frode Jacobsen, some rights reserved (CC BY-NC). View Record Details Media by Frode Jacobsen.

Lobed Mason Wasp in Baltimore Co., Maryland (9/2/2021). (c) Frode Jacobsen, some rights reserved (CC BY-NC). View Record Details Media by Frode Jacobsen.

Lobed Mason Wasp in Carroll Co., Maryland (7/19/2023). (c) Adrienne van den Beemt, some rights reserved (CC BY). View Record Details Media by Adrienne van den Beemt.

Lobed Mason Wasp in Howard Co., Maryland (9/16/2023). (c) Tim Frye, some rights reserved (CC BY-NC). View Record Details Media by Tim Frye via iNaturalist.

Lobed Mason Wasp in Anne Arundel Co., Maryland (9/12/2021). (c) Lindsay D. Loyd, some rights reserved (CC BY-NC). View Record Details Media by Lindsay D. Loyd via iNaturalist.

Lobed Mason Wasp in Montgomery Co., Maryland (9/24/2019). (c) Wendy R Fredericks, some rights reserved (CC BY-NC). View Record Details Media by Wendy R. Fredericks.

Lobed Mason Wasp in Howard Co., Maryland (9/1/2020). (c) acnuk, some rights reserved (CC BY-NC). View Record Details Media by acnuk via iNaturalist.