<em>Macrodiplosis majalis</em> in Queen Anne's Co., Maryland (5/1/2021). (c) Jim Brighton, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 371880 - Psn: 44)

Macrodiplosis majalis in Queen Anne's Co., Maryland (5/1/2021). (c) Jim Brighton, some rights reserved (CC BY-NC).

View Record Details Photo by Jim Brighton MBP List

<em>Macrodiplosis majalis</em> galls on an oak leaf in Baltimore City, Maryland (10/5/2011). Determined by Charley Eiseman/BugGuide. (Photo ID: 45513 - Psn: 100)

Macrodiplosis majalis galls on an oak leaf in Baltimore City, Maryland (10/5/2011). Determined by Charley Eiseman/BugGuide.

View Record Details Photo by Thomas Wilson MBP List

<em>Macrodiplosis majalis</em> galls on an oak leaf in Baltimore City, Maryland (10/5/2011). Determined by Charley Eiseman/BugGuide. (Photo ID: 45514 - Psn: 101)

Macrodiplosis majalis galls on an oak leaf in Baltimore City, Maryland (10/5/2011). Determined by Charley Eiseman/BugGuide.

View Record Details Photo by Thomas Wilson MBP List

<em>Macrodiplosis majalis</em> in Montgomery Co., Maryland (8/28/2021). (c) Izabella Farr, some rights reserved (<a rel='license' href='https://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 439161 - Psn: 175)

Macrodiplosis majalis in Montgomery Co., Maryland (8/28/2021). (c) Izabella Farr, some rights reserved (CC BY-NC).

View Record Details Photo by Izabella Farr via iNaturalist MBP List

<em>Macrodiplosis majalis</em> in Montgomery Co., Maryland (11/1/2021). (c) Emily Summerbell, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 477946 - Psn: 184)

Macrodiplosis majalis in Montgomery Co., Maryland (11/1/2021). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

Macrodiplosis majalis in Montgomery Co., Maryland (11/1/2021). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

Macrodiplosis majalis in Montgomery Co., Maryland (11/1/2021). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

<em>Macrodiplosis majalis</em> in Howard Co., Maryland (5/21/2023). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 807909 - Psn: 205)

Macrodiplosis majalis in Howard Co., Maryland (5/21/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Macrodiplosis majalis in Howard Co., Maryland (5/21/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

<em>Macrodiplosis majalis</em> in Calvert Co., Maryland (10/8/2023). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 899148 - Psn: 215)

Macrodiplosis majalis in Calvert Co., Maryland (10/8/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Macrodiplosis majalis in Calvert Co., Maryland (10/8/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Map Snapshot

16 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

Seasonality Snapshot

Resources

View at iNaturalist View at Nature Serve Search Google Images Search MBP Facebook posts

View images at BugGuide

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

Macrodiplosis majalis in Queen Anne's Co., Maryland (5/1/2021). (c) Jim Brighton, some rights reserved (CC BY-NC). View Record Details Media by Jim Brighton.

Macrodiplosis majalis galls on an oak leaf in Baltimore City, Maryland (10/5/2011). Determined by Charley Eiseman/BugGuide. View Record Details Media by Thomas Wilson.

Macrodiplosis majalis in Montgomery Co., Maryland (8/28/2021). (c) Izabella Farr, some rights reserved (CC BY-NC). View Record Details Media by Izabella Farr via iNaturalist.

Macrodiplosis majalis in Montgomery Co., Maryland (11/1/2021). (c) Emily Summerbell, some rights reserved (CC BY). View Record Details Media by Emily Summerbell, Ph.D. via iNaturalist.

Macrodiplosis majalis in Howard Co., Maryland (5/21/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Macrodiplosis majalis in Calvert Co., Maryland (10/8/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Source: Wikipedia

Macrodiplosis majalis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Diptera
Family:	Cecidomyiidae
Supertribe:	Cecidomyiidi
Genus:	Macrodiplosis
Species:	M. majalis
Binomial name
*Macrodiplosis majalis* (Osten Sacken, 1878)
Synonyms^[1]
Cecidomyia majalis Osten Sacken, 1878

Macrodiplosis majalis is a species of gall midges, insects in the family Cecidomyiidae.^[1]^[2]^[3]^[4]