Horsehair worm aka Gordian worm
This parasitic worm preys on grasshoppers visiting water to drink. Trackside puddles had numerous examples awaiting their victims.
active worm on leaf in suburban garden on rainy day
Horsehair worm that came out of a cricket. (Somebody else saw it coming out of the cricket and called me over.) It wriggled around much, even curling into a ring around my finger!
The cricket's observation is https://www.inaturalist.org/observations/2485302 .
Nematomorpha (sometimes called Gordiacea, and commonly known as horsehair worms or Gordian worms) are a phylum of parasitoid animals superficially similar to nematode worms in morphology, hence the name. They range in size in most species from 50 to 100 centimetres (20 to 39 in) long and can reach in extreme cases up to 2 metres, and 1 to 3 millimetres (0.039 to 0.12 in) in diameter. Horsehair worms can be discovered in damp areas such as watering troughs, swimming...