Wildlife Survey & Photo Service

Mayflies

Mayfly Article

Baetis

Callibaetis

Drunella

Trico

Siphlonurus

Callibaetis caught in spider web. Compared with a midge.

Mayflies

Mayfly Article PDF

Flyfisher Article

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Baetis tricaudatus nymph on an aqautic weed.

Baetis tricaudatus nymph

Baetis is a widespread and diverse genus that is very important to anglers.

Callibaetis nymph showing long antennae and three tails

Nymph

Adult

Callibaetis nymph

On the West Coast, Callibaetis is probably the most important mayfly in lakes and reservoirs. They are somewhat uncommon on rivers and streams, except at still water outflow where I find Callibaetis patterns quite effective.

Drunella nymph

Drunella coloradensis nymph.

Tricorythodes (Trico) dun on the water.

Tricorythodes

Female Siphlonurus spinner showing clear wings.

Siphlonurus

 

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