Skip to main content
x

At-Risk Butterflies & Moths

A beautiful butterfly has its wings spread, displaying areas of vibrant orange with black details, and vivid blue with white spots.
Regal fritillary (Speyeria idalia). (Photo: Bryan E. Reynolds)

Butterflies and moths make up the order Lepidoptera, the fourth largest order of insects. These animals are beautiful to observe and make valuable contributions to ecosystems. From the grassland-dependent species of the Pacific Northwest to the showy swallowtails of Central and South America, the Xerces Society works to conserve butterflies and moths throughout the world. In addition to advocating for Lepidoptera conservation, conducting research, assisting with habitat management and restoration, and developing publications and other educational materials, the Xerces Society administers a yearly award for research into Lepidoptera conservation, in honor of Joan Mosenthal Dewind.

Our species profiles of butterflies and moths assess the conservation needs of some of the most at-risk North American species—either scroll down or use the search tools to explore our listings!

 

Name search (partial name okay)
Atrytone arogos
Arogos Skipper
USA: AL, AR, CO, FL, GA, IL, IA, KS, MN, MS, MO, MT, NE, NJ, NY, NC, ND, OK, PA, SC, TX, WY
Euphilotes baueri
Bauer’s Dotted-Blue
USA: AZ, CA, NV
Euphydryas editha bayensis
Bay Checkerspot
USA: CA
Euphyes bayensis
Bay Skipper
USA: MS, TX
Speyeria zerene behrensii
Behren’s Silverspot
USA: CA
Manduca blackburni
Blackburn’s Sphinx Moth
USA: HI
Callophrys lanoraieensis
Bog Elfin
USA: ME, NH, NY
Canada: NB, NS, ON, QC
Problema byssus
Byssus Skipper
USA: AL, AR, FL, GA, IL, IN, IA, KS, MS, MO, NC, OK, SC, TX, WI
Speyeria callippe callippe
Callippe Silverspot
USA: CA
Pseudocopaeodes eunus obscurus
Carson Wandering Skipper
USA: CA, NV
Hesperia dacotae
Dakota Skipper
USA: IL, IA, MN, ND, SD
Canada: MB, SK
Callophrys comstocki
Desert Green Hairstreak
USA: AZ, CA, CO, NV, UT
Speyeria diana
Diana Fritillary
USA: AL, AR, GA, IN, KY, MO, NC, OH, SC, TN, VA, WV
Euphyes dukesi
Dukes’ Skipper
USA: AL, AR, FL, GA, IL, IN, KY, LA, MI, MS, MO, NC, OH, SC, TX, VA
Canada: ON
Erora laeta
Early Hairstreak
USA: GA, KY, ME, MD, MA, MI, NJ, NY, NC, PA, TN, VT, VA, WV, WI
Canada: NB, NS, ON, QC
Euphilotes battoides allyni
El Segundo Blue
USA: CA
Icaricia icarioides fenderi
Fender’s Blue
USA: OR