Callirhytis petrina (agamic)
The inducer of this gall is unknown or undescribed.
Family: Cynipidae | Genus: Callirhytis
Hosts: Quercus hypoleucoides
Detachable: integral
Color:
Texture:
Abundance:
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Season: Fall
Related:
Alignment: integral
Walls:
Location: fruit
Form: hidden cell
Cells: monothalamous
Possible Range:i
Common Name(s):
Synonymy: 
Image by LH Weld © Public Domain / CC0Our ID Notes may contain important tips necessary for distinguishing this gall from similar galls and/or important information about the taxonomic status of this gall inducer.
Notes on American Gallflies of the Family Cynipidae Producing Galls on Acorns: With Descriptions of New Species
“
CALLIRHYTIS PETRINA. new species
Host. — Quercus hypoleuca Engelmann.
Gall. — A few loosely connected, thin-walled woody cells inside the acorn. Found in summer in acorns of current season's crop.
Habitat. — The type material was collected in Sabijio Basin in the Santa Catalina Mountains, Arizona. June 28. 191S. Three living adults were cut out December 2. 1919. Normal emergence is prob- ably in the spring. Acorns similarly affected were seen in the Huachuca Mountains also.
”- LH Weld: (1922) Notes on American Gallflies of the Family Cynipidae Producing Galls on Acorns: With Descriptions of New Species©
Reference: https://www.biodiversitylibrary.org/page/7305399#page/487/mode/1up
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