When Do Caddis Flies Hatch?

Timing of Hatches
April through October. Emergence and egg laying commonly occurs during the morning or evening hours.

What time of year do caddis flies hatch?

Grannom caddis (Brachycentrus spp., see image #6) are often the first significant caddis hatches for Eastern fly fishers, often hatching in April just before or around the same time as Hendrickson mayflies.

How long does a caddis fly hatch last?

The length of the pupation varies with species but most will take two to five weeks, though some species take much longer, even over-wintering for two to three months, as pupa.

Maya Lin-Takahashi

Maya Lin-Takahashi

Consumer Tech & Gadget Reviewer

Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.