Black gnat
Bibio johannis
Window
Typical: 01 Jul – 31 Jul (2026)
Mid-summer surface food. Smaller and later than hawthorn fly.
Relevance to fishing
Mid-summer terrestrial blow-in. Trout sip them down in warm calm weather.
Phenology chain
No chain links seeded for this event yet.
+ I saw this today
Observation history (0)
No observations yet. Log one above when you spot this event.