Oak Wart Gall in Dorchester Co., Maryland (5/27/2021). (c) Mark Etheridge, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 440675 - Psn: 112)

Oak Wart Gall in Dorchester Co., Maryland (5/27/2021). (c) Mark Etheridge, some rights reserved (CC BY-NC).

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Oak Wart Gall in Montgomery Co., Maryland (5/6/2021). (c) Katja Schulz, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 519498 - Psn: 125)

Oak Wart Gall in Montgomery Co., Maryland (5/6/2021). (c) Katja Schulz, some rights reserved (CC BY).

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Oak Wart Gall in Dorchester Co., Maryland (5/27/2021). (c) Mark Etheridge, some rights reserved (CC BY-NC).

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Oak Wart Gall in Dorchester Co., Maryland (5/27/2021). (c) Mark Etheridge, some rights reserved (CC BY-NC).

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Oak Wart Gall in Dorchester Co., Maryland (5/27/2021). (c) Mark Etheridge, some rights reserved (CC BY-NC).

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Oak Wart Gall in Montgomery Co., Maryland (5/6/2021). (c) Katja Schulz, some rights reserved (CC BY).

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Oak Wart Gall in Calvert Co., Maryland (5/14/2023). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 850356 - Psn: 145)

Oak Wart Gall in Calvert Co., Maryland (5/14/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC).

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Oak Wart Gall in Allegany Co., Maryland (5/14/2022). (c) Jeremy Collison, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 576609 - Psn: 155)

Oak Wart Gall in Allegany Co., Maryland (5/14/2022). (c) Jeremy Collison, some rights reserved (CC BY-NC).

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Oak Wart Gall in Anne Arundel Co., Maryland (5/7/2021). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 762500 - Psn: 155)

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Oak Wart Gall in Carroll Co., Maryland (5/12/2024). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1170283 - Psn: 165)

Oak Wart Gall in Carroll Co., Maryland (5/12/2024). (c) Matthew Beziat, some rights reserved (CC BY-NC).

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Oak Wart Gall in Baltimore Co., Maryland (5/15/2022). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 572139 - Psn: 166)

Oak Wart Gall in Baltimore Co., Maryland (5/15/2022). (c) Matthew Beziat, some rights reserved (CC BY-NC).

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Oak Wart Gall in Baltimore Co., Maryland (7/10/2021). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 580818 - Psn: 166)

Oak Wart Gall in Baltimore Co., Maryland (7/10/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC).

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Oak Wart Gall in Montgomery Co., Maryland (6/24/2023). (c) Katja Schulz, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 920781 - Psn: 166)

Oak Wart Gall in Montgomery Co., Maryland (6/24/2023). (c) Katja Schulz, some rights reserved (CC BY).

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Oak Wart Gall in Montgomery Co., Maryland (5/15/2023). (c) Katja Schulz, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 827944 - Psn: 174)

Oak Wart Gall in Montgomery Co., Maryland (5/15/2023). (c) Katja Schulz, some rights reserved (CC BY).

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Oak Wart Gall in Montgomery Co., Maryland (5/8/2023). (c) Jane Hartman, all rights reserved. (Photo ID: 797580 - Psn: 175)

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Oak Wart Gall in Baltimore City, Maryland (5/7/2023). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 810458 - Psn: 175)

Oak Wart Gall in Baltimore City, Maryland (5/7/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC).

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Oak Wart Gall in Montgomery Co., Maryland (5/15/2023). (c) Katja Schulz, some rights reserved (CC BY).

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Oak Wart Gall in Baltimore City, Maryland (5/7/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC).

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Oak Wart Gall in Harford Co., Maryland (5/15/2024). (c) kidneymoth, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1018170 - Psn: 177)

Oak Wart Gall in Harford Co., Maryland (5/15/2024). (c) kidneymoth, some rights reserved (CC BY-NC).

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Oak Wart Gall in Montgomery Co., Maryland (5/15/2023). (c) Katja Schulz, some rights reserved (CC BY).

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Oak Wart Gall in Charles Co., Maryland (6/2/2024). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1038731 - Psn: 178)

Oak Wart Gall in Charles Co., Maryland (6/2/2024). (c) Matthew Beziat, some rights reserved (CC BY-NC).

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Oak Wart Gall in Montgomery Co., Maryland (5/22/2024). (c) jah956, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1061394 - Psn: 178)

Oak Wart Gall in Montgomery Co., Maryland (5/22/2024). (c) jah956, some rights reserved (CC BY-NC).

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Oak Wart Gall in Queen Anne's Co., Maryland (6/2/2025). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1272115 - Psn: 178)

Oak Wart Gall in Queen Anne's Co., Maryland (6/2/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC).

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Oak Wart Gall in Montgomery Co., Maryland (5/8/2023). (c) Jane Hartman, all rights reserved. (Photo ID: 797578 - Psn: 179)

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Oak Wart Gall in Montgomery Co., Maryland (9/7/2022). (c) Emily Summerbell, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 646788 - Psn: 185)

Oak Wart Gall in Montgomery Co., Maryland (9/7/2022). (c) Emily Summerbell, some rights reserved (CC BY).

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Oak Wart Gall in Montgomery Co., Maryland (5/15/2023). (c) Katja Schulz, some rights reserved (CC BY).

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Oak Wart Gall in Charles Co., Maryland (6/2/2024). (c) Matthew Beziat, some rights reserved (CC BY-NC).

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Oak Wart Gall in Queen Anne's Co., Maryland (6/2/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC).

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Oak Wart Gall in Montgomery Co., Maryland (9/7/2022). (c) Emily Summerbell, some rights reserved (CC BY).

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Oak Wart Gall in Washington Co., Maryland (5/20/2021). (c) Mark Etheridge, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 385221 - Psn: 200)

Oak Wart Gall in Washington Co., Maryland (5/20/2021). (c) Mark Etheridge, some rights reserved (CC BY-NC).

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Oak Wart Gall in Washington Co., Maryland (5/20/2021). (c) Mark Etheridge, some rights reserved (CC BY-NC).

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Oak Wart Gall in Washington Co., Maryland (5/20/2021). (c) Mark Etheridge, some rights reserved (CC BY-NC).

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Oak Wart Gall in Howard Co., Maryland (5/25/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC)

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Oak Wart Gall in Montgomery Co., Maryland (6/24/2023). (c) Katja Schulz, some rights reserved (CC BY).

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Oak Wart Gall in Howard Co., Maryland (6/1/2023). (c) epic2112, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 814509 - Psn: 220)

Oak Wart Gall in Howard Co., Maryland (6/1/2023). (c) epic2112, some rights reserved (CC BY-NC).

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Oak Wart Gall in Montgomery Co., Maryland (5/15/2023). (c) Katja Schulz, some rights reserved (CC BY).

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Oak Wart Gall in Dorchester Co., Maryland (5/27/2021). (c) Mark Etheridge, some rights reserved (CC BY-NC). View Record Details Media by Mark Etheridge.

Oak Wart Gall in Montgomery Co., Maryland (5/6/2021). (c) Katja Schulz, some rights reserved (CC BY). View Record Details Media by Katja Schulz via iNaturalist.

Oak Wart Gall in Dorchester Co., Maryland (5/27/2021). (c) Mark Etheridge, some rights reserved (CC BY-NC). View Record Details Media by Mark Etheridge.

Oak Wart Gall in Montgomery Co., Maryland (5/6/2021). (c) Katja Schulz, some rights reserved (CC BY). View Record Details Media by Katja Schulz via iNaturalist.

Oak Wart Gall in Calvert Co., Maryland (5/14/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Oak Wart Gall in Montgomery Co., Maryland (5/6/2021). (c) Katja Schulz, some rights reserved (CC BY). View Record Details Media by Katja Schulz via iNaturalist.

Oak Wart Gall in Allegany Co., Maryland (5/14/2022). (c) Jeremy Collison, some rights reserved (CC BY-NC). View Record Details Media by Jeremy Collison via iNaturalist.

Oak Wart Gall in Anne Arundel Co., Maryland (5/7/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Oak Wart Gall in Calvert Co., Maryland (5/14/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Oak Wart Gall in Carroll Co., Maryland (5/12/2024). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Oak Wart Gall in Baltimore Co., Maryland (5/15/2022). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Oak Wart Gall in Baltimore Co., Maryland (7/10/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Oak Wart Gall in Montgomery Co., Maryland (6/24/2023). (c) Katja Schulz, some rights reserved (CC BY). View Record Details Media by Katja Schulz via iNaturalist.

Oak Wart Gall in Montgomery Co., Maryland (5/15/2023). (c) Katja Schulz, some rights reserved (CC BY). View Record Details Media by Katja Schulz via iNaturalist.

Oak Wart Gall in Baltimore City, Maryland (5/7/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Oak Wart Gall in Montgomery Co., Maryland (5/15/2023). (c) Katja Schulz, some rights reserved (CC BY). View Record Details Media by Katja Schulz via iNaturalist.

Oak Wart Gall in Baltimore City, Maryland (5/7/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Oak Wart Gall in Harford Co., Maryland (5/15/2024). (c) kidneymoth, some rights reserved (CC BY-NC). View Record Details Media by kidneymoth via iNaturalist.

Oak Wart Gall in Montgomery Co., Maryland (5/15/2023). (c) Katja Schulz, some rights reserved (CC BY). View Record Details Media by Katja Schulz via iNaturalist.

Oak Wart Gall in Charles Co., Maryland (6/2/2024). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Oak Wart Gall in Montgomery Co., Maryland (5/22/2024). (c) jah956, some rights reserved (CC BY-NC). View Record Details Media by jah956 via iNaturalist.

Oak Wart Gall in Queen Anne's Co., Maryland (6/2/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Oak Wart Gall in Montgomery Co., Maryland (9/7/2022). (c) Emily Summerbell, some rights reserved (CC BY). View Record Details Media by Emily Summerbell, Ph.D. via iNaturalist.

Oak Wart Gall in Montgomery Co., Maryland (5/15/2023). (c) Katja Schulz, some rights reserved (CC BY). View Record Details Media by Katja Schulz via iNaturalist.

Oak Wart Gall in Charles Co., Maryland (6/2/2024). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Oak Wart Gall in Queen Anne's Co., Maryland (6/2/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Oak Wart Gall in Montgomery Co., Maryland (9/7/2022). (c) Emily Summerbell, some rights reserved (CC BY). View Record Details Media by Emily Summerbell, Ph.D. via iNaturalist.

Oak Wart Gall in Washington Co., Maryland (5/20/2021). (c) Mark Etheridge, some rights reserved (CC BY-NC). View Record Details Media by Mark Etheridge.

Oak Wart Gall in Howard Co., Maryland (5/25/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC) View Record Details Media by Matthew Beziat.

Oak Wart Gall in Montgomery Co., Maryland (6/24/2023). (c) Katja Schulz, some rights reserved (CC BY). View Record Details Media by Katja Schulz via iNaturalist.

Oak Wart Gall in Howard Co., Maryland (6/1/2023). (c) epic2112, some rights reserved (CC BY-NC). View Record Details Media by epic2112 via iNaturalist.

Oak Wart Gall in Montgomery Co., Maryland (5/15/2023). (c) Katja Schulz, some rights reserved (CC BY). View Record Details Media by Katja Schulz via iNaturalist.

Source: Wikipedia

Callirhytis quercusfutilis

Sexgen gall, external

Sexgen galls, internal
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	Pancrustacea
Class:	Insecta
Order:	Hymenoptera
Family:	Cynipidae
Genus:	Callirhytis
Species:	C. quercusfutilis
Binomial name
*Callirhytis quercusfutilis* (Osten-Sacken, 1861)
Synonyms
Callirhytis radicis Bassett, 1889 Andricus radicis (Bassett, 1889) Andricus radicicola Dalla Torre, 1893 Callirhytis radicicola (Dalla Torre, 1893)

Callirhytis quercusfutilis, the oak wart gall wasp, is a species of gall wasp in the family Cynipidae. ^[1]

Ecology

[edit]

Range is central and eastern North America. ^[1]

The agamic generation lives in the scurfy bark of a host white oak tree root or trunk base. ^[2]^: 344 Host species include white oak, swamp white oak, overcup oak, bur oak, swamp chestnut oak, chestnut oak, dwarf chinkapin oak, and post oak. ^[3]

The sexual generation induces galls on host white oak leaves, between leaf veins and projecting slightly above both surfaces of the leaf. ^[2]^: 343 Internally, thin radiating fibers connect the larval chamber to the wall of the gall, providing the larva with nutrients supplied by the host. ^[4]

References

[edit]

^ ^a ^b "Callirhytis quercusfutilis". iNaturalist. California Academy of Sciences.
^ ^a ^b Alfred Charles Kinsey (1920). Life histories of American Cynipidae. American Museum of Natural History. doi:10.5962/bhl.title.122602.
^ "Callirhytis quercusfutilis (agamic)". Gallformers.
^ "Callirhytis quercusfutilis (sexgen)". Gallformers.