Fallceon sp.

Mark Melton

Active Member
The three species of Fallceon shown here are all out of the Russian River. They are usually found with Baetis and Camelobaetidius nymphs. They prefer a clean gravelly bottom with a moderate to fast flow. The three species shown here are Fallceon quilleri (5.5-7 mm), F. thermophilos (5-5.5 mm), and an unknown Fallceon sp. (5-5.5 mm). All measurements exclude antennae and cerci.

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Fallceon quilleri females

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Fallceon quilleri female

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Fallceon quilleri male

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Fallceon quilleri female

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Fallceon quilleri female

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Fallceon quilleri male

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Fallceon thermophilos male

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Fallceon thermophilos male

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Fallceon thermophilos female

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Fallceon thermophilos females

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Falllceon thermophilos female and unknown Fallceon sp. male

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Fallceon quilleri female. Fallceon thermophilos female and male.

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Unknown male Fallceon sp.

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Unknown male Fallceon sp.

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Fallceon thermophilos male and unknown Fallceon sp.

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Unknown Fallceon sp. male.

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Unknown Fallceon sp. male.

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Male Fallceon thermophilos and unknown Fallceon sp. male.

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Female unknown Fallceon sp.
 

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