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Square-spot Deerfly

A species of horsefly that attacks deer rather than horses for blood to help their egg development.



Common Name Square-spot Deerfly
Scientific Name Chrysops viduatus
Species Group Horse flies
Interest Level
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Identification Notes
Primary Habitat
Preferred Environment
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Additional Identification Notes
Similar Species

The records for this species have been organised into reports, charts, maps and photos. Click a pic below to see the detail:

Notebook Distribution Map Sites List Some Charts Some Photographs Recent Records Guidance Notes

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Horse flies