The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
Time of day: Nighttime; sometimes dusk or early morning
Diet: Decaying leaves
Shelter type: Twigs arranged lengthwise
Their life cycle is completely synchronized with this food source -- the eggs hatch in the fall, just as the deciduous trees are shedding their foliage; the larvae feed and grow throughout the winter and spring, until early summer when the high water flushes away the accumulations of decaying leaves; the larvae enter diapause, a quiescent period, sealing off their cases, once their food source is diminished; they remain in this inactive state until they pupate in late summer; emergence, mating, and egg laying occurs in early fall, producing a new generation in time for the next input of leaves.