Speyeria egleis

Common Name:  Great Basin Fritillary, Egleis Fritillary

Speyeria egleis

Fairly common at Donner and very common near tree-line on Castle and Basin Peaks. A fairly small Frit, about the size of S. mormonia, but unlike it found usually in relatively dry sites, often in areas dominated by Lodgepole Pine; adults visit Coyotemint, Aster, thistles, etc. and males both puddle and hilltop. Although this species is famously variable, it shows little variability on our transect. Like all Frits single-brooded (June-October); host plants Viola, species preferences unknown.



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