no photo — written note
Insects
Tiny curved side-swimming scud, thick in springs and cold seeps.
Field facts
HabitatSprings, seeps, watercress beds
RangeStatewide
When to lookYear-round
StatusSecure (Indiana DNR / IUCN Red List)
Look-alikesIsopods, Mayfly nymphs
Field note: Trout in Indiana spring creeks live largely on these.
Lesson
Watching responsibly
Scud-rich springs are fragile; keep boots out of the source pool.
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