Val d'Aran, July 2008
Switzerland, July 2008
Glimpse of upperside (great banded grayling on left, hermit on right),
Switzerland, August 2013
My mother watches a great banded grayling fly around her feet.
Switzerland 2003.
Final instar caterpillar, May 2018
Final instar caterpillar, May 2018
Distribution
This huge grayling is
common in much of
Europe, favouring grassy places with plenty of bushes. It is
particularly fond of settling on hot tarmac, where it rests, ever
alert, ready to fly up as soon as it thinks you are about to take a
photo. At other times it will zoom up with its characteristic strong,
bouncy flight up into nearby trees, where it will stop and look down on
you. The first adults appear in June and the species remains on the
wing in a single brood until September.
The combination of great size and the white bands on the upperside make
it unmistakable on the wing. A beginner might wonder if it is a poplar
admiral - but that species has a quite different flight. Great banded
graylings bounce energetically. Poplar admirals glide effortlessly
between lazy flaps. At rest, only the underside is ever visible. In
some ways it resembles other large graylings - like the woodland
grayling - but the splashes of white in the basal half of the hindwing
and forewing (in the cell of the forewing) are distinctive.
The foodplants include sheep's fescue and upright brome - but other
grasses too. It hibernates as a caterpillar, completing its larval
development by the end of May the following year. It is then that you
might come across one wandering along a road or track between grassy
areas, looking for a place to pupate.