When does the Smicridea (Patagonian Caddis) hatch?

November–April, typically 18:00–22:30 (evening emergence & egg-lay). It starts from about 9°C, peaks around 15°C and tails off by 21°C.

What flies imitate the Smicridea (Patagonian Caddis)?

Elk Hair Caddis, Deer Hair Sedge, X-Caddis, typically on a #14–12 hook.

How big is the Smicridea (Patagonian Caddis)?

Adult stage: 8–11mm. That matches a #14–12 hook.

Caddis · Aquatic insect

Smicridea (Patagonian Caddis)

Smicridea fasciatella

Size

8–11mm

Hook size

#14–12

Hatch window

Season November–AprilPeak time 18:00–22:30 (evening emergence & egg-lay)

Water temperature

15° peak

9°21°

How fish feed on it

Adult insects on the water are inefficient — a caddis skittering to lay eggs, a stonefly blundering about after crawling out, neither built for elegance. Trout treat it as an easy meal and a bit of theatre at once, chasing a moving fly with more enthusiasm than they'd ever give a still one. Movement is the tell; a static adult imitation often just sits there unloved.

Flies that imitate this

Elk Hair Caddis

Deer Hair Sedge

X-Caddis

Ecology

Rivers & stillwaterFreestone riversSpate rivers

Where you'll find this

PatagoniaPresent

Present throughout

Caddis →