Mayfly · Aquatic insect
Burrowing Mayfly / Green Mayfly
Ichthybotus hudsoni
Size
10–14mm
Hook size
#14–12
Hatch window
Season December–FebruaryPeak time 18:00–22:00 (dusk)
Water temperature
15° peak
10°21°
Hatches from 10°C, peaking at 15°C, tailing off by 21°C.How fish feed on it
By the time the spinners are down the fly has finished its job and is simply lying there, spent, wings flat in the film, going nowhere. Trout know the difference between something alive and something that's stopped trying, and they take spinners with a quiet, unbothered sip that's easy to miss if you're still watching for something splashier. Look for them on the glides and in the slack water, wherever the current gathers what's left.
Flies that imitate this
Kakahi Queen
Green Drake
Ecology
Where you'll find this
- New ZealandPresent
Present throughout