Salmonflies
Pteronarcys californica
The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
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This seems to be a young larva of Limnephilus. Although not clear in the picture, several ventral abdominal segments have chloride epithelia.
Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and
fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or
support the project for an enhanced experience here.
Definition of 'half-spent'
Definition of 'half-spent'
Half-spent: The wing position of some insects which fall on the water after mating. Their wings on one side lay flat in the surface film while the wings on the other side stick up into the air. The term may refer to insects with their wings in that position, as well as the position itself. Many mayfly spinners fall half-spent before becoming spent.