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Stoneflies: Plecoptera

Physical Characteristics, Habitat, Behavior And Reproduction, Stoneflies And People, Conservation Status, Giant Salmonfly (pteronarcys Californica): Species AccountGEOGRAPHIC RANGE, DIET

GIANT SALMONFLY (Pteronarcys californica): SPECIES ACCOUNT

Stoneflies live on all continents, except Antarctica. They are also found on most larger islands except Cuba, Fiji, Hawaii, and New Caledonia. There are approximately two thousand species of stoneflies worldwide, with about six hundred in the United States and Canada.

The adults of some species feed on algae (AL-jee), lichen (LIE-kuhn), pollen, or nectar, but the food preferences of most species are still unknown. Some adults apparently do not feed at all. The larvae feed on living and dead plant or animal materials. Some species shift their food preferences from one food group to another as they mature.

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Animal Life ResourceInsects and Spiders