Boloria polaris

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Polaris fritillary
The Macrolepidoptera of the world (Taf. 71) (8145266417).jpg
Boloria polaris in Seitz 71e
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Nymphalidae
Genus: Boloria
Species:
B. polaris
Binomial name
Boloria polaris
Boisduval, 1828

Boloria polaris, the Polaris fritillary, is a butterfly of the family Nymphalidae. It is found in northernmost Scandinavia, North America (in northeastern Alaska and northern Canada) and in Greenland. It is also found in northeastern Russia and across the Palearctic to Chukotka. It is one of only six butterfly species found on Canada's Ellesmere Island.

Contents

Description

The wingspan is 32–38 mm. A. polaris Bsd. (71e). Similar to the preceding species [ freija ], but more variable, the hindwing beneath more variegated, the black median band of the forewing above heavy, deep black, deeply sinuous proximally. In the marginal area regular rows of submarginal spots. The forewing beneath almost as distinctly marked with black as above, but paler. On the hindwing beneath the ground is marked with mother-of-pearl in the basal area and the narrow band which separates the central from the marginal area bears silvery teeth. —In Norway, Finland, Lapponia, in July and August. The butterfly flies from June to August depending on the location. [1]

Biology

The species is characterized by a two-year development. The flight time of butterflies is in late June - mid-July. Butterflies that live in the mountain tundra usually stay near rocky areas. In the meadow tundra, they often feed on astragalus ( Astragalus ), wild rosemary ( Ledum ), dryad ( Dryas ). Females lay eggs singly or in groups of up to 20 eggs on caterpillar food plants. The egg stage lasts just over two weeks. Caterpillars feed on flowers and leaves. They hibernate under stones or moss twice: after hatching and being at the fourth age. Before the first wintering, the caterpillars do not feed. Caterpillar food plants: Dryas octopetala ,' Vaccínium myrtíllus , Vaccínium uliginósum and Vaccinium sp. [2]

Subspecies

The following subspecies are recognized:

Etymology

Polaris (from Latin) - polar.

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References

  1. Seitz. A. in Seitz, A. ed. Band 1: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen Tagfalter, 1909, 379 Seiten, mit 89 kolorierten Tafeln (3470 Figuren)PD-icon.svg This article incorporates text from this source, which is in the public domain .
  2. Львовский А. Л., Моргун Д. В. Булавоусые чешуекрылые Восточной Европы. — М.: Т-во научных изданий КМК, 2007. — С. 103. — 443 с. — ISBN 978-5-87317-362-4.