USGS - science for a changing world

Northern Prairie Wildlife Research Center

  Home About NPWRC Our Science Staff Employment Contacts Common Questions About the Site

Atlas of North Dakota Butterflies

Regal Fritillary (Speyeria idalia)


  • BND: Regal Fritillary; Speyeria idalia (Drury, 1773)
  • BNA: Regal Fritillary; Speyeria idalia
  • NDC: SPID
  • Habitat: Native prairies in southeastern ND; nectars at Asclepias, Cirsium, Liatris; males patrol continuously when not taking nectar or basking; females range widely and delay egg laying until late August
  • Larval food: Viola pedata (larva overwinters shortly after eclosure)
  • Adult flight: Late June (males) through August (females dominating)
  • References: Royer 122, Opler & Krizek 134, Scott 327
distribution map
map legend
JPG -- species photo

Explanation of Textual Accounts
Return to species list

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/insects/bflynd/nd/98.htm
Page Contact Information: Webmaster
Page Last Modified: Saturday, 02-Feb-2013 05:09:15 EST
Menlo Park, CA [caww54]