LEPIDOPTERA
S A T Y R I D A E Boisduval, 1833
EREBIA Dalman, 1816
Erebia fletcheri Elwes, 1899
Erebia fletcheri Elwes, 1899
· TYPE LOCALITY. "...between the Kurai and Bashkaus" [Kuraisky Mts., Altai].
· RANGE. Locally from the Altai to NE. Yakutia.
· DISTRIBUTION AND VARIATION. The Altai and Sayan Mts., Transbaikalia - the nominate subspecies; the Far East - ssp. chajataensis Dubatolov, 1992.
· HABITAT AND BIOLOGY. Steppe and stony slopes at 1,500-2,500 m a.s.l. Flight period: June-July.
· SIMILAR SPECIES. E. kozhantshikovi, E. dabanensis, E. occulta: UPF band consisting of separate ochreous-red spots or stripes.
Table 1. Comparative features of the dabanensis-group males
Features |
Dabanensis |
Kozhantschikovi |
Occulta |
Troubridgei |
Fletcheri |
UPF band |
consists of separate spots |
consists of separate spots |
consists of separate spots |
consists of separate reduced spots |
broad, well-defined |
UPF ocelli |
4-5 round ocelli |
the first 2 ocelli larger and extended |
2-3 oblong ocelli, very small or absent |
the first 2 ocelli elongated but not larger the others |
4-5 oblong ocelli |
UNF band |
complete or slightly broken by veins |
complete, broken by veins |
consists of separate reduced spots |
consists of separate spots |
complete |
UNH band |
contrasting against silvery ground colour |
contrasting against silvery ground colour |
not contrasting |
little contrasting |
little contras-ting |
FW length |
21-23 mm |
20-22 mm |
22-25 mm |
20-22 mm |
22-24 mm |
Photo and text: Guide to the BUTTERFLIES OF RUSSIA and adjacent territories Volume 1. PENSOFT, Sofia - Moscow. 1997