Female, Switzerland, May 2016
Male, Switzerland, April 2015
Switzerland, April 2007 (for more underside pictures, see southern
grizzled skipper,
Pyrgus
malvoides
Courting pair, my garden, Switzerland, April 2007

Male, my garden, April 2007

Male, my garden, April 2007

Female, my garden, April 2007

My garden, May 2006

Form taras, my garden, May 2006

The same individual with my dog, Asha, in the background

Distribution - replaced in south-western Europe by the
indistinguishable southern grizzled skipper, Pyrgus malvoides
The grizzled skipper and
its sister species, the southern grizzled skipper (Pyrgus malvoides),
are the commonest and most widespread Pyrgus species
in Europe. Formerly considered subspecies, they are now treated as good
species by most authors. Fortunately, there is very little overlap in
their distribution, as they are indistinguishable in the field, though
easily separable by genitalia for those prepared to kill. In
Switzerland, the grizzled skipper flies in Vaud, in the fields and
woods near my home, while the southern grizzled skipper flies in the
Rhône Valley of Valais. All the pictures above were taken in the
Villars-Gryon region and I am confident they are grizzled skippers. I
have few underside shots from here - please see my page on the southern
grizzled skipper for more photos of the underside.
Pyrgus is a
notoriously
difficult genus, especially for beginners. The butterflies are small
and difficult to follow, often only the upperside or the underside can
be seen (depending on the time of day), and above all, there is
enormous variation within species. Nevertheless, it is usually possible
to be sure you have malvae/malvoides
(though not which one!). They are smaller than most similar species and
the upperside markings are cluttered, well defined on forewing and
hindwing, and pure white (rather than cream). The central marking on
the hindwing is usually shaped like a molar tooth but may be reduced to
a line and there is usually a bright, complete submarginal series
outside it. S.1 of the forewing has two double spots in the basal and
discal regions. The underside is also distinctive. The ground colour of
the hindwing varies but is often rather a brick red, and the central
white mark is molar-shaped, with the flat face inwards (basal) and the
roots pointing outwards. The postdiscal series of white spots is
usually broken, with those in ss.1 and 2 small (or in s.2, absent).
Many different Potentilla
species are used as foodplants, as well as wild strawberries,
blackberries and agrimony - despite the Latin name, I am not aware of
the species using mallow.The butterflies can be found in a variety of
habitats, from woodland rides to rough, rocky hillsides, flying from
April to August in one or two broods depending on altitude and
latitude. Where there is a single brood it is usually over by July. The
species hibernates as a pupa.