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Summary
| Description |
English: Criorhina umbratilis head drawing from Williston Synopsis of the North American Syrphidae |
| Date | |
| Source | www.biodiversitylibrary.org/item/90715#page/349/mode/1up Williston Synopsis of the North American Syrphidae. |
| Author | Williston S.W. |
Licensing
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:46, 20 December 2021 | | 181 × 233 (11 KB) | Styrphid Fox | Uploaded a work by Williston S.W. from www.biodiversitylibrary.org/item/90715#page/349/mode/1up Williston Synopsis of the North American Syrphidae. with UploadWizard |
File usage
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