An Imperial Moth in Harford Co., Maryland (7/20/2014).

View Record Details Photo by Mike Burchett MBP List

An Imperial Moth in Worcester Co., Maryland (7/14/2013).

View Record Details Photo by Scott Housten MBP List

A male Imperial Moth in Harford Co., Maryland (7/30/2016).

View Record Details Photo by Dave Webb MBP List

A female Imperial Moth in Prince George's Co., Maryland (6/5/2010).

View Record Details Photo by Bob Patterson MBP List

A male Imperial Moth in Worcester Co., Maryland (7/14/2013).

View Record Details Photo by Scott Housten MBP List

An Imperial Moth in Worcester Co., Maryland (7/30/2013).

View Record Details Photo by Scott Housten MBP List

An Imperial Moth in Montgomery Co., Maryland (7/24/2004).

View Record Details Photo by Dave Czaplak MBP List

An Imperial Moth in Carroll Co., Maryland (7/13/2016).

View Record Details Photo by Barbara Speckart MBP List

An Imperial Moth in Montgomery Co., Maryland (7/24/2004).

View Record Details Photo by Dave Czaplak MBP List

Imperial Moth in Howard Co., Maryland (7/25/2020). (c) Emilio Concari, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 203919 - Psn: 35)

Imperial Moth in Howard Co., Maryland (7/25/2020). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

A male Imperial Moth in Cecil Co., Maryland (7/23/2018).

View Record Details Photo by Shannon Schade MBP List

An Imperial Moth in Washington Co., Maryland (8/5/2020).

View Record Details Photo by Mark Etheridge MBP List

Imperial Moth in Carroll Co., Maryland (7/20/2021). (c) Emilio Concari, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 420483 - Psn: 44)

Imperial Moth in Carroll Co., Maryland (7/20/2021). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

Imperial Moth in Garrett Co., Maryland (Date obscured). (c) Josh Emm, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 613581 - Psn: 44)

Imperial Moth in Garrett Co., Maryland (Date obscured). (c) Josh Emm, some rights reserved (CC BY-NC).

View Record Details Photo by Josh Emm MBP List

A male Imperial Moth in Baltimore Co., Maryland (8/5/2020).

View Record Details Photo by Dave Webb MBP List

Imperial Moth in Baltimore Co., Maryland (7/22/2018). (c) Emily L. Stanley, all rights reserved. (Photo ID: 247814 - Psn: 45)

View Record Details Photo by Emily Stanley MBP List

Imperial Moth in Carroll Co., Maryland (7/21/2021). (c) Emilio Concari, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 422732 - Psn: 52)

Imperial Moth in Carroll Co., Maryland (7/21/2021). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

Imperial Moth in Frederick Co., Maryland (7/1/2021). (c) Emilio Concari, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1212007 - Psn: 52)

Imperial Moth in Frederick Co., Maryland (7/1/2021). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

A male Imperial Moth in Baltimore Co., Maryland (7/12/2020).

View Record Details Photo by Dave Webb MBP List

An Imperial Moth in Harford Co., Maryland (7/11/2020).

View Record Details Photo by Richard Crook MBP List

A female Imperial Moth in Garrett Co., Maryland (7/29/2022).

View Record Details Photo by Dave Webb MBP List

Imperial Moth in Anne Arundel Co., Maryland (8/8/2018). (c) Timothy Reichard, all rights reserved. (Photo ID: 276867 - Psn: 65)

View Record Details Photo by Timothy Reichard MBP List

A female Imperial Moth in Harford Co., Maryland (7/25/2020).

View Record Details Photo by Dave Webb MBP List

Imperial Moth in Anne Arundel Co., Maryland (8/8/2018). (c) Timothy Reichard, all rights reserved. (Photo ID: 276853 - Psn: 78)

View Record Details Photo by Timothy Reichard MBP List

Imperial Moth in Anne Arundel Co., Maryland (8/8/2018). (c) Timothy Reichard, all rights reserved. (Photo ID: 276852 - Psn: 79)

View Record Details Photo by Timothy Reichard MBP List

Imperial Moth in Anne Arundel Co., Maryland (8/7/2018). (c) Timothy Reichard, all rights reserved. (Photo ID: 276843 - Psn: 88)

View Record Details Photo by Timothy Reichard MBP List

An Imperial Moth in Prince George's Co., Maryland.

View Record Details Photo by Bob Patterson MBP List

An Imperial Moth in Prince George's Co., Maryland.

View Record Details Photo by Bob Patterson MBP List

A female Imperial Moth in Howard Co., Maryland (2005).

View Record Details Photo by Larry Line MBP List

Ventral view of a female Imperial Moth in Howard Co., Maryland (2004).

View Record Details Photo by Larry Line MBP List

A female Imperial Moth in Frederick Co., Maryland (7/24/2002).

View Record Details Photo by Mark Etheridge MBP List

Imperial Moth larva in Montgomery Co., Maryland (8/31/2014). (c) Ashley M Bradford, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 878585 - Psn: 112)

Imperial Moth larva in Montgomery Co., Maryland (8/31/2014). (c) Ashley M Bradford, some rights reserved (CC BY-NC).

View Record Details Photo by Ashley Bradford MBP List

An Imperial Moth caterpillar in Howard Co., Maryland (9/23/2017).

View Record Details Photo by Anthony VanSchoor MBP List

Imperial Moth in Baltimore Co., Maryland (8/23/2023). (c) eyeblink, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 873460 - Psn: 115)

Imperial Moth in Baltimore Co., Maryland (8/23/2023). (c) eyeblink, some rights reserved (CC BY-NC).

View Record Details Photo by eyeblink via iNaturalist MBP List

Imperial Moth in Garrett Co., Maryland (10/11/2022). (c) Emilio Concari, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 664618 - Psn: 125)

Imperial Moth in Garrett Co., Maryland (10/11/2022). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

Imperial Moth in Wicomico Co., Maryland (9/22/2022). (c) kjarboe, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 650894 - Psn: 132)

Imperial Moth in Wicomico Co., Maryland (9/22/2022). (c) kjarboe, some rights reserved (CC BY-NC).

View Record Details Photo by kjarboe via iNaturalist MBP List

An Imperial Moth caterpillar in Washington Co., Maryland (8/16/2020).

View Record Details Photo by Mark Etheridge MBP List

Imperial Moth in Howard Co., Maryland (9/25/2020). (c) jmnphillips, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 647652 - Psn: 135)

Imperial Moth in Howard Co., Maryland (9/25/2020). (c) jmnphillips, some rights reserved (CC BY-NC).

View Record Details Photo by jmnphillips via iNaturalist MBP List

Imperial Moth in Somerset Co., Maryland (9/24/2022). (c) Sharon Vandivere, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 654492 - Psn: 135)

Imperial Moth in Somerset Co., Maryland (9/24/2022). (c) Sharon Vandivere, some rights reserved (CC BY-NC).

View Record Details Photo by Sharon Vandivere via iNaturalist MBP List

Imperial Moth in Washington Co., Maryland (9/4/2017). (c) benjesup, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 713945 - Psn: 135)

Imperial Moth in Washington Co., Maryland (9/4/2017). (c) benjesup, some rights reserved (CC BY-NC).

View Record Details Photo by benjesup via iNaturalist MBP List

Imperial Moth in Baltimore Co., Maryland (8/23/2023). (c) eyeblink, some rights reserved (CC BY-NC).

View Record Details Photo by eyeblink via iNaturalist MBP List

Imperial Moth in Garrett Co., Maryland (Date obscured). (c) Josh Emm, some rights reserved (CC BY-NC).

View Record Details Photo by Josh Emm MBP List

Imperial Moth in Baltimore Co., Maryland (9/11/2021). (c) grace nab, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1090498 - Psn: 135)

Imperial Moth in Baltimore Co., Maryland (9/11/2021). (c) grace nab, some rights reserved (CC BY-NC).

View Record Details Photo by grace_nab via iNaturalist MBP List

Imperial Moth in Baltimore Co., Maryland (8/23/2023). (c) eyeblink, some rights reserved (CC BY-NC).

View Record Details Photo by eyeblink via iNaturalist MBP List

Imperial Moth in Harford Co., Maryland (9/29/2018). (c) Josh Emm, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 688128 - Psn: 145)

Imperial Moth in Harford Co., Maryland (9/29/2018). (c) Josh Emm, some rights reserved (CC BY-NC).

View Record Details Photo by Josh Emm MBP List

An Imperial Moth caterpillar in Allegany Co., Maryland (8/26/2016).

View Record Details Photo by Bob Cammarata MBP List

Imperial Moth in Washington Co., Maryland (9/4/2017). (c) benjesup, some rights reserved (CC BY-NC).

View Record Details Photo by benjesup via iNaturalist MBP List

An Imperial Moth larva in Howard Co., Maryland (8/22/2015).

View Record Details Photo by Bonnie Ott MBP List

Imperial Moth in Howard Co., Maryland (8/22/2015).

View Record Details Photo by Bonnie Ott MBP List

An Imperial Moth caterpillar in Howard Co., Maryland (9/14/2013).

View Record Details Photo by Bonnie Ott MBP List

A Imperial Moth caterpillar in Frederick Co., Maryland (7/29/2012).

View Record Details Photo by Bob Cammarata MBP List

A Imperial Moth caterpillar in Montgomery Co., Maryland (9/5/2012).

View Record Details Photo by Don Watley MBP List

An Imperial Moth larva in Baltimore Co., Maryland (8/30/2016).

View Record Details Photo by Bob Cammarata MBP List

An Imperial Moth caterpillar in Harford Co., Maryland (7/19/2017).

View Record Details Photo by Bob Cammarata MBP List

An Imperial Moth caterpillar in Frederick Co., Maryland (9/10/2019).

View Record Details Photo by Bob Cammarata MBP List

An Imperial Moth caterpillar in Howard Co., Maryland (9/18/2020).

View Record Details Photo by Bob Cammarata MBP List

Imperial Moth in Anne Arundel Co., Maryland (8/8/2018). (c) Timothy Reichard, all rights reserved. (Photo ID: 276854 - Psn: 200)

View Record Details Photo by Timothy Reichard MBP List

An Imperial Moth caterpillar in St. Mary's Co., Maryland (9/14/2016).

View Record Details Photo by Tonia delozier MBP List

Imperial Moth in Harford Co., Maryland (7/19/2025). (c) Elsie Holler, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1307244 - Psn: 200)

Imperial Moth in Harford Co., Maryland (7/19/2025). (c) Elsie Holler, some rights reserved (CC BY-NC).

View Record Details Photo by Elsie Holler via iNaturalist MBP List

Imperial Moth in Howard Co., Maryland (8/30/2025). (c) Bonnie Ott, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1339152 - Psn: 200)

Imperial Moth in Howard Co., Maryland (8/30/2025). (c) Bonnie Ott, some rights reserved (CC BY-NC).

View Record Details Photo by Bonnie Ott via iNaturalist MBP List

Imperial Moth in Caroline Co., Maryland (7/27/2025). (c) Frode Jacobsen, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1339266 - Psn: 200)

Imperial Moth in Caroline Co., Maryland (7/27/2025). (c) Frode Jacobsen, some rights reserved (CC BY-NC).

View Record Details Photo by Frode Jacobsen MBP List

Imperial Moth in Anne Arundel Co., Maryland (7/29/2025). (c) jmarlow1, all rights reserved (Photo ID: 1393681 - Psn: 200)

View Record Details Photo by jmarlow1 via iNaturalist MBP List

An Imperial Moth caterpillar in Howard Co., Maryland (8/25/2018).

View Record Details Photo by Anthony VanSchoor MBP List

An Imperial Moth caterpillar in Harford Co., Maryland (7/19/2017).

View Record Details Photo by Bob Cammarata MBP List

An Imperial Moth caterpillar in Harford Co., Maryland (7/28/2018).

View Record Details Photo by Bob Cammarata MBP List

An Imperial Moth caterpillar at the Jemicy School in Baltimore Co., Maryland (10/4/2013).

View Record Details Photo by Emily Stanley MBP List

An Imperial Moth that has succumbed to a fungal attack in Garrett Co., Maryland (10/26/2020). (c) marilynncat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 647656 - Psn: 325)

An Imperial Moth that has succumbed to a fungal attack in Garrett Co., Maryland (10/26/2020). (c) marilynncat, some rights reserved (CC BY-NC).

View Record Details Photo by marilynncat via iNaturalist MBP List

Map Snapshot

728 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

Relationships

In Harford County Bob Cammarata has observed caterpillars on Box Elder. Other host plants include Bald Cypress, Basswood,

Seasonality Summary

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Resources

View at iNaturalist Search Google Images Search MBP Facebook posts

View images at BugGuide View in Moth Photographers Group

Citations

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

An Imperial Moth in Harford Co., Maryland (7/20/2014). View Record Details Media by Mike Burchett.

An Imperial Moth in Worcester Co., Maryland (7/14/2013). View Record Details Media by Scott Housten.

A male Imperial Moth in Harford Co., Maryland (7/30/2016). View Record Details Media by Dave Webb.

A female Imperial Moth in Prince George's Co., Maryland (6/5/2010). View Record Details Media by Bob Patterson.

A male Imperial Moth in Worcester Co., Maryland (7/14/2013). View Record Details Media by Scott Housten.

An Imperial Moth in Worcester Co., Maryland (7/30/2013). View Record Details Media by Scott Housten.

An Imperial Moth in Montgomery Co., Maryland (7/24/2004). View Record Details Media by Dave Czaplak.

An Imperial Moth in Carroll Co., Maryland (7/13/2016). View Record Details Media by Barbara Speckart.

An Imperial Moth in Montgomery Co., Maryland (7/24/2004). View Record Details Media by Dave Czaplak.

Imperial Moth in Howard Co., Maryland (7/25/2020). (c) Emilio Concari, some rights reserved (CC BY-NC). View Record Details Media by Emilio Concari.

A male Imperial Moth in Cecil Co., Maryland (7/23/2018). View Record Details Media by Shannon Schade.

An Imperial Moth in Washington Co., Maryland (8/5/2020). View Record Details Media by Mark Etheridge.

Imperial Moth in Carroll Co., Maryland (7/20/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). View Record Details Media by Emilio Concari.

Imperial Moth in Garrett Co., Maryland (Date obscured). (c) Josh Emm, some rights reserved (CC BY-NC). View Record Details Media by Josh Emm.

A male Imperial Moth in Baltimore Co., Maryland (8/5/2020). View Record Details Media by Dave Webb.

Imperial Moth in Carroll Co., Maryland (7/21/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). View Record Details Media by Emilio Concari.

Imperial Moth in Frederick Co., Maryland (7/1/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). View Record Details Media by Emilio Concari.

A male Imperial Moth in Baltimore Co., Maryland (7/12/2020). View Record Details Media by Dave Webb.

An Imperial Moth in Harford Co., Maryland (7/11/2020). View Record Details Media by Richard Crook.

A female Imperial Moth in Garrett Co., Maryland (7/29/2022). View Record Details Media by Dave Webb.

A female Imperial Moth in Harford Co., Maryland (7/25/2020). View Record Details Media by Dave Webb.

An Imperial Moth in Prince George's Co., Maryland. View Record Details Media by Bob Patterson.

A female Imperial Moth in Howard Co., Maryland (2005). View Record Details Media by Larry Line.

Ventral view of a female Imperial Moth in Howard Co., Maryland (2004). View Record Details Media by Larry Line.

A female Imperial Moth in Frederick Co., Maryland (7/24/2002). View Record Details Media by Mark Etheridge.

Imperial Moth larva in Montgomery Co., Maryland (8/31/2014). (c) Ashley M Bradford, some rights reserved (CC BY-NC). View Record Details Media by Ashley Bradford.

An Imperial Moth caterpillar in Howard Co., Maryland (9/23/2017). View Record Details Media by Anthony VanSchoor.

Imperial Moth in Baltimore Co., Maryland (8/23/2023). (c) eyeblink, some rights reserved (CC BY-NC). View Record Details Media by eyeblink via iNaturalist.

Imperial Moth in Garrett Co., Maryland (10/11/2022). (c) Emilio Concari, some rights reserved (CC BY-NC). View Record Details Media by Emilio Concari.

Imperial Moth in Wicomico Co., Maryland (9/22/2022). (c) kjarboe, some rights reserved (CC BY-NC). View Record Details Media by kjarboe via iNaturalist.

An Imperial Moth caterpillar in Washington Co., Maryland (8/16/2020). View Record Details Media by Mark Etheridge.

Imperial Moth in Howard Co., Maryland (9/25/2020). (c) jmnphillips, some rights reserved (CC BY-NC). View Record Details Media by jmnphillips via iNaturalist.

Imperial Moth in Somerset Co., Maryland (9/24/2022). (c) Sharon Vandivere, some rights reserved (CC BY-NC). View Record Details Media by Sharon Vandivere via iNaturalist.

Imperial Moth in Washington Co., Maryland (9/4/2017). (c) benjesup, some rights reserved (CC BY-NC). View Record Details Media by benjesup via iNaturalist.

Imperial Moth in Baltimore Co., Maryland (8/23/2023). (c) eyeblink, some rights reserved (CC BY-NC). View Record Details Media by eyeblink via iNaturalist.

Imperial Moth in Garrett Co., Maryland (Date obscured). (c) Josh Emm, some rights reserved (CC BY-NC). View Record Details Media by Josh Emm.

Imperial Moth in Baltimore Co., Maryland (9/11/2021). (c) grace nab, some rights reserved (CC BY-NC). View Record Details Media by grace_nab via iNaturalist.

Imperial Moth in Baltimore Co., Maryland (8/23/2023). (c) eyeblink, some rights reserved (CC BY-NC). View Record Details Media by eyeblink via iNaturalist.

Imperial Moth in Harford Co., Maryland (9/29/2018). (c) Josh Emm, some rights reserved (CC BY-NC). View Record Details Media by Josh Emm.

An Imperial Moth caterpillar in Allegany Co., Maryland (8/26/2016). View Record Details Media by Bob Cammarata.

Imperial Moth in Washington Co., Maryland (9/4/2017). (c) benjesup, some rights reserved (CC BY-NC). View Record Details Media by benjesup via iNaturalist.

An Imperial Moth larva in Howard Co., Maryland (8/22/2015). View Record Details Media by Bonnie Ott.

Imperial Moth in Howard Co., Maryland (8/22/2015). View Record Details Media by Bonnie Ott.

An Imperial Moth caterpillar in Howard Co., Maryland (9/14/2013). View Record Details Media by Bonnie Ott.

A Imperial Moth caterpillar in Frederick Co., Maryland (7/29/2012). View Record Details Media by Bob Cammarata.

A Imperial Moth caterpillar in Montgomery Co., Maryland (9/5/2012). View Record Details Media by Don Watley.

An Imperial Moth larva in Baltimore Co., Maryland (8/30/2016). View Record Details Media by Bob Cammarata.

An Imperial Moth caterpillar in Harford Co., Maryland (7/19/2017). View Record Details Media by Bob Cammarata.

An Imperial Moth caterpillar in Frederick Co., Maryland (9/10/2019). View Record Details Media by Bob Cammarata.

An Imperial Moth caterpillar in Howard Co., Maryland (9/18/2020). View Record Details Media by Bob Cammarata.

An Imperial Moth caterpillar in St. Mary's Co., Maryland (9/14/2016). View Record Details Media by Tonia delozier.

Imperial Moth in Harford Co., Maryland (7/19/2025). (c) Elsie Holler, some rights reserved (CC BY-NC). View Record Details Media by Elsie Holler via iNaturalist.

Imperial Moth in Howard Co., Maryland (8/30/2025). (c) Bonnie Ott, some rights reserved (CC BY-NC). View Record Details Media by Bonnie Ott via iNaturalist.

Imperial Moth in Caroline Co., Maryland (7/27/2025). (c) Frode Jacobsen, some rights reserved (CC BY-NC). View Record Details Media by Frode Jacobsen.

An Imperial Moth caterpillar in Howard Co., Maryland (8/25/2018). View Record Details Media by Anthony VanSchoor.

An Imperial Moth caterpillar in Harford Co., Maryland (7/19/2017). View Record Details Media by Bob Cammarata.

An Imperial Moth caterpillar in Harford Co., Maryland (7/28/2018). View Record Details Media by Bob Cammarata.

An Imperial Moth caterpillar at the Jemicy School in Baltimore Co., Maryland (10/4/2013). View Record Details Media by Emily Stanley.

An Imperial Moth that has succumbed to a fungal attack in Garrett Co., Maryland (10/26/2020). (c) marilynncat, some rights reserved (CC BY-NC). View Record Details Media by marilynncat via iNaturalist.