An Ocellate Gall Midge gall in Baltimore City, Maryland (5/14/2008).

View Record Details Photo by Thomas Wilson MBP List

Ocellate Gall Midge in Caroline Co., Maryland (5/18/2019). (c) Judy Gallagher, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 629251 - Psn: 25)

Ocellate Gall Midge in Caroline Co., Maryland (5/18/2019). (c) Judy Gallagher, some rights reserved (CC BY).

View Record Details Photo by Judy Gallagher MBP List

Ocellate Gall Midge in Prince George's Co., Maryland (5/15/2020). (c) Jane Hartman, all rights reserved. (Photo ID: 292415 - Psn: 44)

View Record Details Photo by Jane Hartman MBP List

Ocellate Gall Midge galls on Red Maple in Anne Arundel Co., Maryland (5/18/2013).

View Record Details Photo by Bill Hubick MBP List

Ocellate Gall Midge in Worcester Co., Maryland (Date obscured). (c) johnbotany, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 371143 - Psn: 55)

Ocellate Gall Midge in Worcester Co., Maryland (Date obscured). (c) johnbotany, some rights reserved (CC BY-NC).

View Record Details Photo by John Hall MBP List

Ocellate Gall Midge in Howard Co., Maryland (5/14/2022). (c) smuller, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 577190 - Psn: 55)

Ocellate Gall Midge in Howard Co., Maryland (5/14/2022). (c) smuller, some rights reserved (CC BY-NC).

View Record Details Photo by Sue Muller MBP List

Ocellate Gall Midge in Prince George's Co., Maryland (5/8/2021). (c) Hans Holbrook, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 374305 - Psn: 76)

Ocellate Gall Midge in Prince George's Co., Maryland (5/8/2021). (c) Hans Holbrook, some rights reserved (CC BY-NC).

View Record Details Photo by Hans Holbrook MBP List

Ocellate Gall Midge in St. Mary's Co., Maryland (5/5/2023). (c) jtylerbell, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1092281 - Psn: 88)

Ocellate Gall Midge in St. Mary's Co., Maryland (5/5/2023). (c) jtylerbell, some rights reserved (CC BY-NC).

View Record Details Photo by Tyler Bell MBP List

Ocellate Gall Midge in Allegany Co., Maryland (5/23/2021). (c) stefoutside, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 476015 - Psn: 144)

Ocellate Gall Midge in Allegany Co., Maryland (5/23/2021). (c) stefoutside, some rights reserved (CC BY-NC).

View Record Details Photo by stefoutside via iNaturalist MBP List

Ocellate Gall Midge in Carroll Co., Maryland (5/13/2020). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 476016 - Psn: 145)

Ocellate Gall Midge in Carroll Co., Maryland (5/13/2020). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Ocellate Gall Midge in Carroll Co., Maryland (5/25/2020). (c) Emilio Concari, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 294220 - Psn: 155)

Ocellate Gall Midge in Carroll Co., Maryland (5/25/2020). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

Ocellate Gall Midge in Prince George's Co., Maryland (5/4/2023). (c) crisnici, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 794400 - Psn: 155)

Ocellate Gall Midge in Prince George's Co., Maryland (5/4/2023). (c) crisnici, some rights reserved (CC BY-NC).

View Record Details Photo by crisnici via iNaturalist MBP List

Ocellate Gall Midge in Baltimore Co., Maryland (5/25/2020). (c) Wayne Longbottom, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 877251 - Psn: 155)

Ocellate Gall Midge in Baltimore Co., Maryland (5/25/2020). (c) Wayne Longbottom, some rights reserved (CC BY-NC).

View Record Details Photo by Wayne Longbottom MBP List

Ocellate Gall Midge in Anne Arundel Co., Maryland (4/27/2023). (c) Timothy Reichard, all rights reserved. (Photo ID: 798709 - Psn: 165)

View Record Details Photo by Timothy Reichard MBP List

Ocellate Gall Midge in Anne Arundel Co., Maryland (5/15/2022). (c) Zachary Dankowicz, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 589165 - Psn: 175)

Ocellate Gall Midge in Anne Arundel Co., Maryland (5/15/2022). (c) Zachary Dankowicz, some rights reserved (CC BY-NC).

View Record Details Photo by Zachary Dankowicz via iNaturalist MBP List

Ocellate Gall Midge in Caroline Co., Maryland (6/23/2023). (c) Wayne Longbottom, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 834360 - Psn: 178)

Ocellate Gall Midge in Caroline Co., Maryland (6/23/2023). (c) Wayne Longbottom, some rights reserved (CC BY-NC).

View Record Details Photo by Wayne Longbottom MBP List

Ocellate Gall Midge in Baltimore Co., Maryland (5/7/2025). (c) bluecubic, some rights reserved (CC BY-NC)

View Record Details Photo by bluecubic via iNaturalist MBP List

Ocellate Gall Midge in Anne Arundel Co., Maryland (4/27/2023). (c) Timothy Reichard, all rights reserved. (Photo ID: 798710 - Psn: 195)

View Record Details Photo by Timothy Reichard MBP List

Ocellate Gall Midge in Montgomery Co., Maryland (5/30/2017).

View Record Details Photo by Bill Harms MBP List

Ocellate Gall Midge in Montgomery Co., Maryland (5/3/2025). (c) forestseasons, some rights reserved (CC BY-NC)

View Record Details Photo by forestseasons via iNaturalist MBP List

Ocellate Gall Midge in St. Mary's Co., Maryland (5/27/2017).

View Record Details Photo by Jim Brighton MBP List

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291 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

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

An Ocellate Gall Midge gall in Baltimore City, Maryland (5/14/2008). View Record Details Media by Thomas Wilson.

Ocellate Gall Midge in Caroline Co., Maryland (5/18/2019). (c) Judy Gallagher, some rights reserved (CC BY). View Record Details Media by Judy Gallagher.

Ocellate Gall Midge galls on Red Maple in Anne Arundel Co., Maryland (5/18/2013). View Record Details Media by Bill Hubick.

Ocellate Gall Midge in Worcester Co., Maryland (Date obscured). (c) johnbotany, some rights reserved (CC BY-NC). View Record Details Media by John Hall.

Ocellate Gall Midge in Howard Co., Maryland (5/14/2022). (c) smuller, some rights reserved (CC BY-NC). View Record Details Media by Sue Muller.

Ocellate Gall Midge in Prince George's Co., Maryland (5/8/2021). (c) Hans Holbrook, some rights reserved (CC BY-NC). View Record Details Media by Hans Holbrook.

Ocellate Gall Midge in St. Mary's Co., Maryland (5/5/2023). (c) jtylerbell, some rights reserved (CC BY-NC). View Record Details Media by Tyler Bell.

Ocellate Gall Midge in Allegany Co., Maryland (5/23/2021). (c) stefoutside, some rights reserved (CC BY-NC). View Record Details Media by stefoutside via iNaturalist.

Ocellate Gall Midge in Carroll Co., Maryland (5/13/2020). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Ocellate Gall Midge in Carroll Co., Maryland (5/25/2020). (c) Emilio Concari, some rights reserved (CC BY-NC). View Record Details Media by Emilio Concari.

Ocellate Gall Midge in Prince George's Co., Maryland (5/4/2023). (c) crisnici, some rights reserved (CC BY-NC). View Record Details Media by crisnici via iNaturalist.

Ocellate Gall Midge in Baltimore Co., Maryland (5/25/2020). (c) Wayne Longbottom, some rights reserved (CC BY-NC). View Record Details Media by Wayne Longbottom.

Ocellate Gall Midge in Anne Arundel Co., Maryland (5/15/2022). (c) Zachary Dankowicz, some rights reserved (CC BY-NC). View Record Details Media by Zachary Dankowicz via iNaturalist.

Ocellate Gall Midge in Caroline Co., Maryland (6/23/2023). (c) Wayne Longbottom, some rights reserved (CC BY-NC). View Record Details Media by Wayne Longbottom.

Ocellate Gall Midge in Baltimore Co., Maryland (5/7/2025). (c) bluecubic, some rights reserved (CC BY-NC) View Record Details Media by bluecubic via iNaturalist.

Ocellate Gall Midge in Montgomery Co., Maryland (5/30/2017). View Record Details Media by Bill Harms.

Ocellate Gall Midge in Montgomery Co., Maryland (5/3/2025). (c) forestseasons, some rights reserved (CC BY-NC) View Record Details Media by forestseasons via iNaturalist.

Ocellate Gall Midge in St. Mary's Co., Maryland (5/27/2017). View Record Details Media by Jim Brighton.

Source: Wikipedia

Acericecis ocellaris


Larva (top) and Leaf gall caused by Acericecis ocellaris (bottom)
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	Pancrustacea
Class:	Insecta
Order:	Diptera
Family:	Cecidomyiidae
Genus:	Acericecis
Species:	A. ocellaris
Binomial name
*Acericecis ocellaris* (Osten Sacken, 1862)
Synonyms^[1]
Cecidomyia ocellaris Osten Sacken, 1862 Mayetiola virginiana Felt, 1908

Acericecis ocellaris, known generally as ocellate gall midge, is a species of gall midge in the family Cecidomyiidae. Other common names include the maple eyespot gall and maple leaf spot gall.^[1]^[2]^[3]^[4]

This species induces blister-like galls on the leaves of maples in the Nearctic, including Acer circinatum, A. pensylvanicum, A. rubrum, A. saccharinum, A. saccharum, and A. spicatum.^[5]^[6]

The species was first described by Carl Robert Osten-Sacken in 1862 as Cecidomyia ocellaris.^[5] It is the type species of the genus.^[5]