Conservation-dependent
Guides
Calephelis borealis
Northern Metalmark
Calephelis borealis, the northern metalmark, is a small butterfly in the family Riodinidae endemic to the eastern United States. It is one of few tropical-associated riodinids found in eastern North America. The species has declined across its range due to habitat loss from afforestation and invasive plant encroachment. Active management including canopy thinning and invasive plant removal has been shown to increase local populations.
Ellipsoptera nevadica lincolniana
Salt Creek Tiger Beetle
Ellipsoptera nevadica lincolniana is a critically endangered subspecies of tiger beetle endemic to saline wetlands in Nebraska, USA. Populations remain critically low despite ongoing conservation efforts. The egg stage in June is particularly vulnerable to climatic conditions, with higher temperatures and lower precipitation negatively impacting population growth through reduced oviposition and egg survival.