Micro Caddis

Scientific Name: family Hydroptilidae

Microcaddis are caddis that are . . . well . . . small. Very small. So small you can easily miss them. In fact, very few fly anglers are aware of their existence, and even fewer carry imitations. Trout, however, can find them delectable. There may be many times that you are valiantly trying to match a mystery midge hatch when it's actually a microcaddis hatch.

Tactics and flies are a blend of those for midges and larger caddis. Just keep your imitations small, neat, and thin. No one said it was going to be easy.


LARVA COLOR: Varies; usually a dark brown

PUPA SIZE: 2-5 mm

PUPA COLOR: Varies; usually on the dark side

ADULT SIZE: 2-5 mm

ADULT COLOR: Varies; typically dark brown

Other characteristics: Generally, larva is caseless until it nears maturity. Body, wing, and shroud colors can vary, so it's always best to check a natural insect where you are fishing. Body and wing colors will darken when the insect is ready to lay eggs.

Click on the fly name to see the pattern. Click on the presentation to learn how to do it.

Pupa Soft Hackle 20-22
Body: yellow, brown, orange
surface swing, deep swing moderate to slow flows
Adult Elk Hair Caddis 20-22
Body and wing: dark brown, green
standard dry fly moderate to slow flows
Egg-layer Soft Hackle 20-22
Body: dark brown, green
surface swing moderate to slow flows