<em>Aphaenogaster rudis</em> in Montgomery Co., Maryland (7/26/2023). Determined by James C. Trager/BugGuide. (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: 982197 - Psn: 24)

Aphaenogaster rudis in Montgomery Co., Maryland (7/26/2023). Determined by James C. Trager/BugGuide. (c) Jim Moore (Maryland), some rights reserved (CC BY-NC).

View Record Details Photo by Jim Moore MBP List

<em>Aphaenogaster rudis</em> specimen. Contributed by <a href='https://www.antweb.org/bigPicture.do?name=casent0104843&shot=p&number=1'>April Nobile</a>. (Photo ID: 73882 - Psn: 25)

Aphaenogaster rudis specimen. Contributed by April Nobile.

View Record Details Photo by AntWeb Data MBP List

<em>Aphaenogaster rudis</em> in Prince George's Co., Maryland (2/11/2023). (c) Benjamin Burgunder, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 1196302 - Psn: 44)

Aphaenogaster rudis in Prince George's Co., Maryland (2/11/2023). (c) Benjamin Burgunder, some rights reserved (CC BY).

View Record Details Photo by Benjamin Burgunder via iNaturalist MBP List

<em>Aphaenogaster rudis</em> in Harford Co., Maryland (8/1/2024). (c) Mariko, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1157929 - Psn: 54)

Aphaenogaster rudis in Harford Co., Maryland (8/1/2024). (c) Mariko, some rights reserved (CC BY-NC).

View Record Details Photo by Mariko via iNaturalist MBP List

<em>Aphaenogaster rudis</em> in Howard Co., Maryland (4/26/2014). (Photo ID: 13061 - Psn: 60)

Aphaenogaster rudis in Howard Co., Maryland (4/26/2014).

Photo by Tim Foard MBP List

<em>Aphaenogaster rudis</em> in Calvert Co., Maryland (4/25/2020). (Photo ID: 318316 - Psn: 65)

Aphaenogaster rudis in Calvert Co., Maryland (4/25/2020).

View Record Details Photo by Jim Moore MBP List

<em>Aphaenogaster rudis</em> in Montgomery Co., Maryland (11/11/2024). (c) jonsense, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 1186332 - Psn: 65)

Aphaenogaster rudis in Montgomery Co., Maryland (11/11/2024). (c) jonsense, some rights reserved (CC BY).

View Record Details Photo by Jonsense via iNaturalist MBP List

Aphaenogaster rudis in Prince George's Co., Maryland (2/11/2023). (c) Benjamin Burgunder, some rights reserved (CC BY).

View Record Details Photo by Benjamin Burgunder via iNaturalist MBP List

Aphaenogaster rudis in Harford Co., Maryland (8/1/2024). (c) Mariko, some rights reserved (CC BY-NC).

View Record Details Photo by Mariko via iNaturalist MBP List

Aphaenogaster rudis in Prince George's Co., Maryland (2/11/2023). (c) Benjamin Burgunder, some rights reserved (CC BY).

View Record Details Photo by Benjamin Burgunder via iNaturalist MBP List

<em>Aphaenogaster rudis</em> in Montgomery Co., Maryland (5/7/2023). (c) Peter Edelman, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1222179 - Psn: 77)

Aphaenogaster rudis in Montgomery Co., Maryland (5/7/2023). (c) Peter Edelman, some rights reserved (CC BY-NC).

View Record Details Photo by peroed via iNaturalist MBP List

<em>Aphaenogaster rudis</em> in Montgomery Co., Maryland (5/25/2025). (c) jonsense, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 1262013 - Psn: 77)

Aphaenogaster rudis in Montgomery Co., Maryland (5/25/2025). (c) jonsense, some rights reserved (CC BY).

View Record Details Photo by Jonsense via iNaturalist MBP List

Aphaenogaster rudis in Harford Co., Maryland (8/1/2024). (c) Mariko, some rights reserved (CC BY-NC).

View Record Details Photo by Mariko via iNaturalist MBP List

<em>Aphaenogaster rudis</em> in Montgomery Co., Maryland (3/8/2025). (c) Peter Edelman, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1214172 - Psn: 88)

Aphaenogaster rudis in Montgomery Co., Maryland (3/8/2025). (c) Peter Edelman, some rights reserved (CC BY-NC).

View Record Details Photo by peroed via iNaturalist MBP List

Aphaenogaster rudis in Montgomery Co., Maryland (5/25/2025). (c) jonsense, some rights reserved (CC BY).

View Record Details Photo by Jonsense via iNaturalist MBP List

Aphaenogaster rudis in Prince George's Co., Maryland (2/11/2023). (c) Benjamin Burgunder, some rights reserved (CC BY).

View Record Details Photo by Benjamin Burgunder via iNaturalist MBP List

<em>Aphaenogaster rudis</em> in Anne Arundel Co., Maryland (4/22/2018). (c) Bill Hubick, all rights reserved. (Photo ID: 1203377 - Psn: 98)

View Record Details Photo by Bill Hubick MBP List

<em>Aphaenogaster rudis</em> in Howard Co., Maryland (3/17/2024). (c) epic2112, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1197580 - Psn: 111)

Aphaenogaster rudis in Howard Co., Maryland (3/17/2024). (c) epic2112, some rights reserved (CC BY-NC).

View Record Details Photo by epic2112 via iNaturalist MBP List

<em>Aphaenogaster rudis</em> in Montgomery Co., Maryland (7/26/2023). (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: 982198 - Psn: 112)

Aphaenogaster rudis in Montgomery Co., Maryland (7/26/2023). (c) Jim Moore (Maryland), some rights reserved (CC BY-NC).

View Record Details Photo by Jim Moore MBP List

Aphaenogaster rudis in Howard Co., Maryland (3/17/2024). (c) epic2112, some rights reserved (CC BY-NC).

View Record Details Photo by epic2112 via iNaturalist MBP List

<em>Aphaenogaster rudis</em> in Montgomery Co., Maryland (4/28/2024). (c) Elissa Totin, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 1204166 - Psn: 144)

Aphaenogaster rudis in Montgomery Co., Maryland (4/28/2024). (c) Elissa Totin, some rights reserved (CC BY).

View Record Details Photo by Elissa Totin via iNaturalist MBP List

Aphaenogaster rudis in Montgomery Co., Maryland (11/11/2024). (c) jonsense, some rights reserved (CC BY).

View Record Details Photo by Jonsense via iNaturalist MBP List

Aphaenogaster rudis in Montgomery Co., Maryland (11/11/2024). (c) jonsense, some rights reserved (CC BY).

View Record Details Photo by Jonsense via iNaturalist MBP List

Aphaenogaster rudis in Montgomery Co., Maryland (11/11/2024). (c) jonsense, some rights reserved (CC BY).

View Record Details Photo by Jonsense via iNaturalist MBP List

<em>Aphaenogaster rudis</em> in Anne Arundel Co., Maryland (4/22/2018). (c) Bill Hubick, all rights reserved. (Photo ID: 1203375 - Psn: 186)

View Record Details Photo by Bill Hubick MBP List

<em>Aphaenogaster rudis</em> in Anne Arundel Co., Maryland (4/22/2018). (c) Bill Hubick, all rights reserved. (Photo ID: 1203374 - Psn: 188)

View Record Details Photo by Bill Hubick MBP List

<em>Aphaenogaster rudis</em> in Calvert Co., Maryland (5/17/2025). (c) Anneke, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1259267 - Psn: 200)

Aphaenogaster rudis in Calvert Co., Maryland (5/17/2025). (c) Anneke, some rights reserved (CC BY-NC).

View Record Details Photo by Anneke via iNaturalist MBP List

Aphaenogaster rudis in Montgomery Co., Maryland (5/25/2025). (c) jonsense, some rights reserved (CC BY).

View Record Details Photo by Jonsense via iNaturalist MBP List

Aphaenogaster rudis in Montgomery Co., Maryland (5/25/2025). (c) jonsense, some rights reserved (CC BY).

View Record Details Photo by Jonsense via iNaturalist MBP List

<em>Aphaenogaster rudis</em> in Baltimore Co., Maryland (5/29/2025). (c) richard crook, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1289854 - Psn: 200)

Aphaenogaster rudis in Baltimore Co., Maryland (5/29/2025). (c) richard crook, some rights reserved (CC BY-NC).

View Record Details Photo by rwcrook via iNaturalist MBP List

<em>Aphaenogaster rudis</em> in Garrett Co., Maryland (Date obscured). (c) Kyle Klotz, all rights reserved (Photo ID: 1461725 - Psn: 200)

View Record Details Photo by Kyle Klotz MBP List

Map Snapshot

120 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

Found in various forested habitats encompassing both dry upland forests and mesic lowland forests including cypress swamps; This species has been recorded from old fields, as well as open areas near woods. (See Frye et al., 2014)

Seasonality Summary

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Resources

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Citations

No citations linked for this taxon yet.

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

Aphaenogaster rudis in Montgomery Co., Maryland (7/26/2023). Determined by James C. Trager/BugGuide. (c) Jim Moore (Maryland), some rights reserved (CC BY-NC). View Record Details Media by Jim Moore.

Aphaenogaster rudis specimen. Contributed by April Nobile. View Record Details Media by AntWeb Data.

Aphaenogaster rudis in Prince George's Co., Maryland (2/11/2023). (c) Benjamin Burgunder, some rights reserved (CC BY). View Record Details Media by Benjamin Burgunder via iNaturalist.

Aphaenogaster rudis in Harford Co., Maryland (8/1/2024). (c) Mariko, some rights reserved (CC BY-NC). View Record Details Media by Mariko via iNaturalist.

Aphaenogaster rudis in Howard Co., Maryland (4/26/2014). Media by Tim Foard.

Aphaenogaster rudis in Calvert Co., Maryland (4/25/2020). View Record Details Media by Jim Moore.

Aphaenogaster rudis in Montgomery Co., Maryland (11/11/2024). (c) jonsense, some rights reserved (CC BY). View Record Details Media by Jonsense via iNaturalist.

Aphaenogaster rudis in Prince George's Co., Maryland (2/11/2023). (c) Benjamin Burgunder, some rights reserved (CC BY). View Record Details Media by Benjamin Burgunder via iNaturalist.

Aphaenogaster rudis in Harford Co., Maryland (8/1/2024). (c) Mariko, some rights reserved (CC BY-NC). View Record Details Media by Mariko via iNaturalist.

Aphaenogaster rudis in Prince George's Co., Maryland (2/11/2023). (c) Benjamin Burgunder, some rights reserved (CC BY). View Record Details Media by Benjamin Burgunder via iNaturalist.

Aphaenogaster rudis in Montgomery Co., Maryland (5/7/2023). (c) Peter Edelman, some rights reserved (CC BY-NC). View Record Details Media by peroed via iNaturalist.

Aphaenogaster rudis in Montgomery Co., Maryland (5/25/2025). (c) jonsense, some rights reserved (CC BY). View Record Details Media by Jonsense via iNaturalist.

Aphaenogaster rudis in Harford Co., Maryland (8/1/2024). (c) Mariko, some rights reserved (CC BY-NC). View Record Details Media by Mariko via iNaturalist.

Aphaenogaster rudis in Montgomery Co., Maryland (3/8/2025). (c) Peter Edelman, some rights reserved (CC BY-NC). View Record Details Media by peroed via iNaturalist.

Aphaenogaster rudis in Montgomery Co., Maryland (5/25/2025). (c) jonsense, some rights reserved (CC BY). View Record Details Media by Jonsense via iNaturalist.

Aphaenogaster rudis in Prince George's Co., Maryland (2/11/2023). (c) Benjamin Burgunder, some rights reserved (CC BY). View Record Details Media by Benjamin Burgunder via iNaturalist.

Aphaenogaster rudis in Howard Co., Maryland (3/17/2024). (c) epic2112, some rights reserved (CC BY-NC). View Record Details Media by epic2112 via iNaturalist.

Aphaenogaster rudis in Montgomery Co., Maryland (7/26/2023). (c) Jim Moore (Maryland), some rights reserved (CC BY-NC). View Record Details Media by Jim Moore.

Aphaenogaster rudis in Howard Co., Maryland (3/17/2024). (c) epic2112, some rights reserved (CC BY-NC). View Record Details Media by epic2112 via iNaturalist.

Aphaenogaster rudis in Montgomery Co., Maryland (4/28/2024). (c) Elissa Totin, some rights reserved (CC BY). View Record Details Media by Elissa Totin via iNaturalist.

Aphaenogaster rudis in Montgomery Co., Maryland (11/11/2024). (c) jonsense, some rights reserved (CC BY). View Record Details Media by Jonsense via iNaturalist.

Aphaenogaster rudis in Calvert Co., Maryland (5/17/2025). (c) Anneke, some rights reserved (CC BY-NC). View Record Details Media by Anneke via iNaturalist.

Aphaenogaster rudis in Montgomery Co., Maryland (5/25/2025). (c) jonsense, some rights reserved (CC BY). View Record Details Media by Jonsense via iNaturalist.

Aphaenogaster rudis in Baltimore Co., Maryland (5/29/2025). (c) richard crook, some rights reserved (CC BY-NC). View Record Details Media by rwcrook via iNaturalist.