Viola-host
Guides
Speyeria atlantis
Atlantis fritillary
Speyeria atlantis, the Atlantis fritillary, is a North American brush-footed butterfly in the family Nymphalidae. It ranges from Newfoundland and Labrador across northern Canada to British Columbia, and south through the northern United States to Colorado and West Virginia. The species is listed as endangered in Connecticut and shows sensitivity to climate warming trends. Research demonstrates that adults rely primarily on visual senses to navigate to suitable habitat patches across fragmented landscapes.
Speyeria mormonia mormonia
Mormon Fritillary
Speyeria mormonia mormonia is a montane butterfly subspecies found in western North America. Research indicates adults exhibit compensatory feeding behavior to offset energy costs of increased flight activity. Females demonstrate higher early-life fecundity under conditions of abundant food resources, with metabolic rates declining with age. The subspecies shows sexual dimorphism in demographic parameters including survival patterns correlated with weather conditions.