Bozeman — Hatch Chart

East Gallatin · Hyalite Creek confluence to Belgrade area

Mayflies

BWOs (Spring) Mar–May · #14-16
BWOs (Fall) Sep–Oct · #16-22
March Browns Mar–Apr · #14-16 · 46°F
PMDs Jun–Jul · #14-16 · 58°F
Tricos Jul–Sep · #18-22

Stoneflies

Skwalas Mar–Mar · #8-10
Yellow Sallies Jun–Jul · #8-16

Caddis

Caddis Apr–Jul · #12-16
October Caddis Sep–Oct · #8-10

Midges

Midges Jan–Dec · #18-26

Terrestrials

Hoppers Jul–Oct · #8-12
Ants Jul–Oct · #14-18
Beetles Jul–Oct · #14-18