Butterflies of Norway

http://www.nagypal.net/

BOLORIA IMPROBA

 

English name: UK: Dusky-winged Fritillary. US: Dingy Arctic Fritillary.
Norwegian name: Dvergperlemorvinge.
Auctor: (Butler, 1877)
Original description: as Argynnis Improba in Ent. Month. Mag., 13 : 206.
Syn.: - - -
Type locality of nominate species: Winter Cove and Cambridge Bay, NW Territories, Canada.
Worldwide distribution: Mountains of Arctic Fennoscandia. Polar tundra of Siberia to Chukotka, even Novaya Zemlya Is., Alaska,
North-western Canada, small areas of Colorado and Wyoming.
Subspecies in Norway: B.i.improbula.
Recognized subspecies: B.i.improba (Butler, 1877) - Alaska, North-west Canada.
B.i.acrocnema - San Juan Mts., Colorado.
B.i.harryi - Wind River Mts., Wyoming.
B.i.improbula Brykner, 1920 - Northern Fennoscandia.
Notes: According to Tuzov & al. (2000), specimens from East Chukotka (the extreme North-East tip of Russia, at the
Bering Strait) resemble f. youngi (Holland, 1900), a yellowish form described from Alaska.
 

 

B.improba improbula

Auctor: (Bryk, 1920)
Syn.: as Argynnis improba f. improbula in Ent. Tidskrift, 41:131.
Type locality of subspecies: Torneträsk, Swedish Lapland.
Distribution in Norway: Mountains of inner Troms, North Norway.
Notes: B.improba is one of Norway's rarest butterflies. Until recently, the only confirmed records from Norway were from
1893 (leg. Hans Jacob Sparre Schneider), 1922 (leg. Tron Soot-Ryen) and 1948 (leg. Henrik Bruun).

But in 2008 a previously unknown population was found in Bardu kommune (leg. Lars Andersen).

Today improba is recorded from localities in Troms regions, elevation approx 900 - 1130 m above sea-level.
B.improba inhabits the most exposed glacial plateaus, where it flies close to ground, or just crawls among low
flowers in the strong wind.
Described forms found in Norway: - - -
Etymology: improba: improbus = below standard, of bad quality, poor, inferior (a rather improper name for a butterfly surviving
in some of this planet's most harsh areas!).
improbula is a patronymic derivation from improba.
 




impr-19.JPG (12171 bytes)

1 2 3


BOLORIA  IMPROBA  IMPROBULA

Specimen

EIS

Region

Kommune

Coll. date

Legit

In coll.

Remarks

1 147 TRI Bardu 18-VII-1893 Hans Jacob Sparre Schneider ZMO m
2 148 TRI Målselv 20-VII-1922 Tron Soot-Ryen ZMO m
3 156 TRI Storfjord 10-VII-1948 Henrik Bruun ZMO m






impr-28.JPG (42267 bytes)

1 2 3


BOLORIA  IMPROBA  IMPROBULA  -   vental view

Specimen

EIS

Region

Kommune

Coll. date

Legit

In coll.

Remarks

1 147 TRI Bardu 18-VII-1893 Hans Jacob Sparre Schneider ZMO m
2 148 TRI Målselv 20-VII-1922 Tron Soot-Ryen ZMO m
3 156 TRI Storfjord 10-VII-1948 Henrik Bruun ZMO m



For further notes, photos and maps of this species, check out
the Lepidoptera homepage of the Zoological Museum of Oslo/Norwegian Entomological Society/Skogforsk
(text in Norwegian).


 

Butterflies of Norway | Systematic list of the Norwegian butterflies | Bibliography
Acknowledgements
| Links | Maps of Norway | Updates
Main page
Birdwing Butterflies of the World Section
| Systematic list of the Birdwing Butterflies

 

© Tony Nagypal, 2001-2011

Adidas Porsche Design Schwarz KD Zapatos Nike Cipő Webshop Prada Outlet Store Supra TK Society Zapatos Nike Air Jordan Cipő webshop Nike HK Official site Basket Air Jordan 11 Retro Adidas Nmd Femme Rose Nike Flyknit Air Max Laufschuh Nike Air Max 95 En Feet Adidas ClimaCool Boat Breeze Nike Air Huarache id Femme Air Jordan IX Nike Air Sale Outlet NIKE MERCURIAL VAPOR X CR7 Ugg i Do Boots Adidas Ultra Boost Uncaged cheap nike air max 2017 Louboutin Soldes France