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3,375 species in Joshua Tree National Park
Stenomorpha obsoleta
Stictopelta nova
Stomoxys calcitrans
Stylocline micropoides
Stylocline sonorensis
Sympetrum illotum
Synchlora aerata
Synchlora bistriaria
Synchlora frondaria
Syspira synthetica
Tabanus punctifer
Tamarix gallica
Tarsonops systematicus
Tathorhynchus exsiccata
Temnothorax nevadensis
Tetradymia spinosa
Tetragonoderus pallidus
Thermonectus marmoratus
Thrassis arizonensis
Triarius melanolomatus
Trifolium willdenovii
Trimerotropis cyaneipennis
Triops longicaudatus
Tristyla alboplagiata
Triticum aestivum
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