Synonyms and other taxonomic changes
as subgenera or synonyms, following the classification of Opler and Warren
and All-Leps (see discussion
in Taxonomy Forum)
Explanation of Names
subgenus Boloria includes:
Boloria alaskensis, and other closely similar "species" of dubius and debated distinction in Eurasia.
subgenus Proclossiana includes:
subgenus Clossiana includes: all remaining species, which can be arranged into the following groups based on genitalia and pattern. Each group has additional members in Eurasia:
Selene Group: B. selene
Euphrosyne Group: B. chariclea
Freija Group: B. freija, natazhati
Polaris Group: B. alberta, astarte, polaris
Bellona Group: B. bellona, epithore, frigga, improba, kriemhild
Species names in Boloria are confusing, as different authors may use different names for the same insect. Part of this is due to disagreement on where species distinctions lie, and thus as to just how many species there really are. Also, it is debated whether a number of our North American representatives are different species or the same as counterparts in Eurasia, also affecting the names used.
14 species in North America listed at BOA
Smaller than the Greater Fritillaries, mostly orange above with black markings. Forewing has a complete submarginal band, but hindwing underside usually lacks silver spots (except in Boloria selene). Seeing the distinct markings on the hindwing underside is the best way to identify species; however, most can be identified by a combination of where and when seen and appearance even when only the upper side is observed.
Alaska and all of Canada, including arctic islands, plus northern United States, south in the Appalachians to North Carolina, the Rockies to New Mexico, and the west coast to California.
also represented by +/- 10 species (some the same as ours) throughout much of Eurasia.
Primarily boreal and mountain in fields, wet meadows, bogs, arctic tundra, mountain tops, disturbed areas, and many other open settings.
Larvae of most species feed on Violets. Others feed on Willow, Blueberry, Saxifrage, Mountain Avens, etc. Adults nectar at many flower species and will often sip moisture from the ground.
Some (mostly Arctic and high mountain) species fly only every other year. Some overwinter as larvae and others as pupae.
These low-flying butterflies are constantly on the move, giving few opportunities for good looks at the markings on the hindwing underside.
are similar on the forewing underside but on the hindwing underside they have a complex pattern of pale, usually metallic silver spots. The Lesser Fritillaries have complex patterns on the hindwing underside but usually lack silver spots (except in Boloria selene
lack a complete submarginal band on the forewing
pinned adult images
of all 14 species in North America, with links to species accounts and US distribution maps (nearctica.com)
list of Eurasian species
with distribution maps, links to images, synonyms, foodplants, references (Markku Savela, FUNET)