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Mayfly Genus Acentrella (Miniature Blue-Winged Olives)

Taxonomic Navigation -?-
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Ephemeroptera (Mayflies)
» Family Baetidae (Blue-Winged Olives)
» Genus Acentrella (Miniature Blue-Winged Olives)
Species in AcentrellaNumber of SpecimensNumber of Pictures
Acentrella turbidaMiniature Blue-Winged Olive00

6 species aren't included.
Common Names
Fly Imitations by Orvis
The only Acentrella species known to be important to anglers is Acentrella turbida. See its species page for distribution and timing details.

Hatching Behavior

Time Of Day (?): Early evening; sometimes all day
The nymphs are normally excellent swimmers, but they become much less mobile as they're emerging and dead-drift (Dead-drift: The manner in which a fly drifts on the water when not moving by itself or by the influence of a line. Trout often prefer dead-drifting prey and imitating the dead-drift in tricky currents is a major challenge of fly fishing.) helplessly to the suface. Considering that they then emerge and fly away quickly, this makes the nymphs the prime stage to match during this emergence.

Spinner Behavior

Time Of Day: Dusk
These species molt into spinners and mate the same day they emerge. The spinner activity usually comes at dusk, or even after dark.

Nymph Biology

Current Speed: Slow to Medium
Substrate: Rocks, logs, gravel, vegetation
Environmental Tolerance: Widely tolerant, but best in cold rivers

Recent Discussions of Acentrella

acentrella nymph 8 Replies »
Posted by Goose on Nov 3, 2006
Last reply on Nov 4, 2006 by GONZO
Hi Jason! Do you have a picture of the (acentrella-miniature BWO nymph) on the site? I've been fishing them and wanted a better idea of how they look.
Thanks,
Bruce
Reply

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