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Lasiommata petropolitana / Northern Wall Brown
Petropolitanja
Nymphalidae - Satyrinae
Lasioimmata petropolitana (Fabricius, 1787). TL: St. Petersburg, Russia.
 
 
1a. Lasiommata petropollitana, distribution map.  Historical data ;  Additional data from the 2018 update ;  New observations since the 2018 update.
1b. Lasiommata petropollitana ♀ upperside. Italy (© Sylvain Cuvelier)
1c. Lasiommata petropollitana ♂ upperside. BIH (© Sylvain Cuvelier)
1d. Lasiommata petropollitana ♂ underside. BIH (© Sylvain Cuvelier)
Description
♂♂
Medium size butterfly. Fw: 19-21 mm.
Ups: dark brown gc.
Upf: broad sex-brand, inconspicuous dark bars in cell, interrupted fulvous postdiscal area, large white-pupilled apical ocellus, sometimes small ocellus in s6.
Uph: dark curving wavy transverse discal line, fulvous-ringed and white-pupilled ocelli in s2, s3 and s4.
Unh: darker brown-grey and slightly mottled gc, yellow-orange ringed postdiscal ocelli in s2 to s6.
♀♀
Similar size.
Upf: wider and more continuous fulvous area, apical ocelli similar to ♂♂.
Unh: similar to ♂♂.
Similar species
Lasiommata maera
Size: larger Lasiommata.
Very variable ♂♂ and ♀♀.
Upf:  brown gc in basal area.
Uph:  no dark transverse discal line.
Lasiommata megera
Size:smaller Lasiommata.
Upf: orange gc in basal area.
Uph:  narrow orange postdiscal band.
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Life cycle
Adults: single generation from mid-May up to August depending on altitude.
Egg: short stage.
Caterpillar: long stage.
Pupa: overwintering.
Habitat
Lasiommata petropollitana inhabits open stony places in woodland of pine or spruce from 700 up to 2000 m a.s.l.
Spatial requirement modest, population density moderate.
Foodplants
Caterpillars feed on Calamagrostis epigejos, Dactylis glomerata, Festuca ovina, F. rubra and Melica nutans.
Butterflies feed on a large variety of flowers.
Distribution
Albania: local in the mountains (more research needed)
Balkan: AL - BG - BIH - GR - HR - NMK - MNE - RKS - RO - SLO - SRB
Europe: IB* - IT* - ALP - BAL* - NWE - UK - SCA - EEU*
Asia Minor*, Transcaucasia and Caucasus.
Conservation status
Lasiommata petropollitana is not endangered.
Albanian Red List: NE.
IUCN Red List, category at the Mediterranean level: LC.
Useful links
Pyrgus.de
Lepiforum
Euroleps
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