Grape Tumid Gallmaker Midge in Washington Co., Maryland (6/24/2018). (c) Mark Etheridge, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 325336 - Psn: 54)

Grape Tumid Gallmaker Midge in Washington Co., Maryland (6/24/2018). (c) Mark Etheridge, some rights reserved (CC BY-NC).

View Record Details Photo by Mark Etheridge MBP List

Grape Tumid Gallmaker Midge in Worcester Co., Maryland (6/29/2020). (c) John Plischke, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 226232 - Psn: 88)

Grape Tumid Gallmaker Midge in Worcester Co., Maryland (6/29/2020). (c) John Plischke, some rights reserved (CC BY-NC).

View Record Details Photo by John Plischke MBP List

A Grape Tumid Gallmaker Midge in Frederick Co., Maryland (6/24/2017). Determined by Charley Eiseman/BugGuide.

View Record Details Photo by Mark Etheridge MBP List

Grape Tumid Gallmaker Midge in Frederick Co., Maryland (7/31/2023). (c) Mark Etheridge, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 857777 - Psn: 145)

Grape Tumid Gallmaker Midge in Frederick Co., Maryland (7/31/2023). (c) Mark Etheridge, some rights reserved (CC BY-NC).

View Record Details Photo by Mark Etheridge MBP List

Grape Tumid Gallmaker Midge in Garrett Co., Maryland (7/11/2021). (c) Jim Brighton, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 434986 - Psn: 155)

Grape Tumid Gallmaker Midge in Garrett Co., Maryland (7/11/2021). (c) Jim Brighton, some rights reserved (CC BY-NC).

View Record Details Photo by Jim Brighton MBP List

Grape Tumid Gallmaker Midge in Prince George's Co., Maryland (5/25/2022). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 576467 - Psn: 155)

Grape Tumid Gallmaker Midge in Prince George's Co., Maryland (5/25/2022). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Grape Tumid Gallmaker Midge in Frederick Co., Maryland (7/31/2023). (c) Mark Etheridge, some rights reserved (CC BY-NC).

View Record Details Photo by Mark Etheridge MBP List

Grape Tumid Gallmaker Midge in Frederick Co., Maryland (6/20/2020). (c) Mark Etheridge, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1205905 - Psn: 158)

Grape Tumid Gallmaker Midge in Frederick Co., Maryland (6/20/2020). (c) Mark Etheridge, some rights reserved (CC BY-NC).

View Record Details Photo by Mark Etheridge MBP List

Grape Tumid Gallmaker Midge in Maryland (Date obscured). (c) jessica klotz, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 837896 - Psn: 162)

Grape Tumid Gallmaker Midge in Maryland (Date obscured). (c) jessica klotz, some rights reserved (CC BY-NC).

View Record Details Photo by jessica_klotz via iNaturalist MBP List

Grape Tumid Gallmaker Midge in Carroll Co., Maryland (6/5/2022). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 582761 - Psn: 166)

Grape Tumid Gallmaker Midge in Carroll Co., Maryland (6/5/2022). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Grape Tumid Gallmaker Midge in Maryland (Date obscured). (c) jessica klotz, some rights reserved (CC BY-NC).

View Record Details Photo by jessica_klotz via iNaturalist MBP List

Grape Tumid Gallmaker Midge in Anne Arundel Co., Maryland (6/26/2025). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1288819 - Psn: 166)

Grape Tumid Gallmaker Midge in Anne Arundel Co., Maryland (6/26/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Grape Tumid Gallmaker Midge in Anne Arundel Co., Maryland (6/4/2025). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1270521 - Psn: 176)

Grape Tumid Gallmaker Midge in Anne Arundel Co., Maryland (6/4/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Grape Tumid Gallmaker Midge in Prince George's Co., Maryland (5/25/2022). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Grape Tumid Gallmaker Midge in Maryland (Date obscured). (c) jessica klotz, some rights reserved (CC BY-NC).

View Record Details Photo by jessica_klotz via iNaturalist MBP List

Grape Tumid Gallmaker Midge in Anne Arundel Co., Maryland (6/4/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Grape Tumid Gallmaker Midge in Montgomery Co., Maryland (6/5/2023). (c) paseowalk, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 818402 - Psn: 200)

Grape Tumid Gallmaker Midge in Montgomery Co., Maryland (6/5/2023). (c) paseowalk, some rights reserved (CC BY-NC).

View Record Details Photo by paseowalk via iNaturalist MBP List

Grape Tumid Gallmaker Midge in Washington Co., Maryland (6/3/2023). (c) Frode Jacobsen, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 818406 - Psn: 200)

Grape Tumid Gallmaker Midge in Washington Co., Maryland (6/3/2023). (c) Frode Jacobsen, some rights reserved (CC BY-NC).

View Record Details Photo by Frode Jacobsen MBP List

Grape Tumid Gallmaker Midge in Washington Co., Maryland (6/3/2023). (c) Frode Jacobsen, some rights reserved (CC BY-NC).

View Record Details Photo by Frode Jacobsen MBP List

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

Grape Tumid Gallmaker Midge in Washington Co., Maryland (6/24/2018). (c) Mark Etheridge, some rights reserved (CC BY-NC). View Record Details Media by Mark Etheridge.

Grape Tumid Gallmaker Midge in Worcester Co., Maryland (6/29/2020). (c) John Plischke, some rights reserved (CC BY-NC). View Record Details Media by John Plischke.

A Grape Tumid Gallmaker Midge in Frederick Co., Maryland (6/24/2017). Determined by Charley Eiseman/BugGuide. View Record Details Media by Mark Etheridge.

Grape Tumid Gallmaker Midge in Frederick Co., Maryland (7/31/2023). (c) Mark Etheridge, some rights reserved (CC BY-NC). View Record Details Media by Mark Etheridge.

Grape Tumid Gallmaker Midge in Garrett Co., Maryland (7/11/2021). (c) Jim Brighton, some rights reserved (CC BY-NC). View Record Details Media by Jim Brighton.

Grape Tumid Gallmaker Midge in Prince George's Co., Maryland (5/25/2022). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Grape Tumid Gallmaker Midge in Frederick Co., Maryland (7/31/2023). (c) Mark Etheridge, some rights reserved (CC BY-NC). View Record Details Media by Mark Etheridge.

Grape Tumid Gallmaker Midge in Frederick Co., Maryland (6/20/2020). (c) Mark Etheridge, some rights reserved (CC BY-NC). View Record Details Media by Mark Etheridge.

Grape Tumid Gallmaker Midge in Maryland (Date obscured). (c) jessica klotz, some rights reserved (CC BY-NC). View Record Details Media by jessica_klotz via iNaturalist.

Grape Tumid Gallmaker Midge in Carroll Co., Maryland (6/5/2022). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Grape Tumid Gallmaker Midge in Maryland (Date obscured). (c) jessica klotz, some rights reserved (CC BY-NC). View Record Details Media by jessica_klotz via iNaturalist.

Grape Tumid Gallmaker Midge in Anne Arundel Co., Maryland (6/26/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Grape Tumid Gallmaker Midge in Anne Arundel Co., Maryland (6/4/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Grape Tumid Gallmaker Midge in Prince George's Co., Maryland (5/25/2022). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Grape Tumid Gallmaker Midge in Maryland (Date obscured). (c) jessica klotz, some rights reserved (CC BY-NC). View Record Details Media by jessica_klotz via iNaturalist.

Grape Tumid Gallmaker Midge in Anne Arundel Co., Maryland (6/4/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Grape Tumid Gallmaker Midge in Montgomery Co., Maryland (6/5/2023). (c) paseowalk, some rights reserved (CC BY-NC). View Record Details Media by paseowalk via iNaturalist.

Grape Tumid Gallmaker Midge in Washington Co., Maryland (6/3/2023). (c) Frode Jacobsen, some rights reserved (CC BY-NC). View Record Details Media by Frode Jacobsen.