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4,636 species in Waterton Lakes National Park
Simulium tuberosum
Sisicottus montanus
Sisyrinchium angustifolium
Sitona lineatus
Solidago simplex
Somatochlora semicircularis
Soucron arenarium
Spaelotis bicava
Sparganothis bistriata
Sparganothis tristriata
Spathius elegans
Sphaeridium lunatum
Sphaeridium scarabaeoides
Spilogona opaca
Spilogona sororcula
Spilogona suspecta
Spilogona trigonifera
Steatoda albomaculata
Steatoda hespera
Stellaria longifolia
Stemonyphantes blauveltae
Stenacron interpunctatum
Stenomacrus exserens
Stereocaulon glareosum
Stereocaulon tomentosum
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