Caddis · Aquatic insect
Yellow Spotted Sedge
Philopotamus montanus
Size
7–10mm
Hook size
#16–14
Hatch window
Season May–JunePeak time 13:00–19:00
Water temperature
12° peak
8°17°
Hatches from 8°C, peaking at 12°C, tailing off by 17°C.How fish feed on it
A sedge of fast, cold, clean upland streams, on the water through late spring and early summer. Never a blanket hatch, but a steady trickle through the afternoon in the sort of tumbling water where a bushy fly is easy to see and easy to fish.
Flies that imitate this
Grannom
Silver Sedge
Elk Hair Caddis
Spent Caddis
LaFontaine Caddis Emerger
Ecology
Where you'll find this
- British IslesPresent
- IberiaPresent
- The AlpsPresent
- ScandinaviaPresent
- Continental EuropePresent
- Atlantic fringePresent
Present throughout
Identification
Philopotamus montanus , common name yellow spotted sedge , is a species of caddisfly belonging to the family Philopotamidae.