Oberthür's Grizzled Skipper

Pyrgus armoricanus (PEER-guss ar-mor-i-can-uss)

Oberthur's Grizzled Skipper female - Var, France 12-May-2012
Photo © Roger Gibbons
 

Checklist Number
57.0021

Family:HesperiidaeLatreille, 1809
Subfamily:PyrginaeBurmeister, 1878
Tribe:  
Genus:PyrgusHübner, [1819]
Subgenus:  
Species:armoricanus(Oberthür, 1910)

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Introduction

Barrett (1892) writes: "Several years ago, when looking through the collection of the Rev. T. H. Marsh, of Cawston, Norfolk, I noticed that his series of Strichthus alveolus [an earlier designation for Pyrgus malvae, Grizzled Skipper], Hüb., consisted of specimens larger than any known to me, and slightly different in markings. Of these he very kindly gave me two, and these I compared, as opportunity offered, with types of the other European species of this very puzzling group. My difficulty was that they did not agree precisely with any, being apparently intermediate between S. alveus [Large Grizzled Skipper] and S. serratulae [Olive Skipper]. Finally, however, it became evident that my specimens were truly S. alveus, and perhaps the difficulty experienced in deciding this point will appear less remarkable in view of the fact that Continental authors are divided in opinion as to whether S. serratulae, is, or is not, a variety of S. alveus.

Mr. Marsh took all his specimens in a damp open valley bordering a wood, in his own district, at the end of May or early in June, probably eighteen or twenty years ago [Howarth (1973) gives a precise year of 1860, although it is not clear how this was determined]. He recollects distinctly that they were on the wing when he was taking Sesia bombyliformis [Broad-bordered Bee Hawk-moth], also that he never saw the species except in that one year, yet believing the specimens to be S. alveolus, and therefore no rarities, he made no memorandum of the circumstance, and thus has lost the date".

Barrett (1893) elaborates further: "About the actual capture of these specimens at the place stated there is no shadow of a doubt ... but, although frequently working the district in subsequent years, he [Rev. T. H. Marsh] never saw the species again; and a strenuous effort in the present year (1892), to re-discover it, has only resulted in convincing him, as well as myself, of its total absence at the present time. Under these circumstances it seems undesirable now to introduce the species to a place in the British list, but rather to record the captures in question as specimens accidentally introduced with plants, or else the result of a very exceptional act of migration. One other specimen, apparently of the same species, and said to have been captured in Yorkshire, was exhibited by Mr. J. T. Carrington, at a meeting of the South London Entomological and Natural History Society, in January 1890, under the name of Syrichthus Carthami [Safflower Skipper]".

Barrett (1893) illustrates the butterfly in colour (Volume 1, Plate 37, Fig.2), allowing us to identify it as Pyrgus armoricanus, Oberthür's Grizzled Skipper, which had not, at the time, been separated from S. alveus, Large Grizzled Skipper.

Highslide JS

Plate 37 of Barrett's The Lepidoptera of the British Islands (Vol. 1)

Pyrgus armoricanus

This species was first defined in Oberthür (1910) as shown here and as shown in this plate (type locality: Rennes, France).

Oberthur's Grizzled Skipper male - Var, France 13-May-2011

Male
Photo © Roger Gibbons

Oberthur's Grizzled Skipper male - Var, France 15-May-2011

Male Underside
Photo © Roger Gibbons

Oberthur's Grizzled Skipper female - Var, France 12-May-2012

Female
Photo © Roger Gibbons

Oberthur's Grizzled Skipper underside, Parc du Mercantour, Alpes-Maritimes, France, 11th July 2014

Female Underside
Photo © David M

Photo Album ...


History

Description to be completed.

Conservation Status

No conservation action is relevant for this species.

Habitat

Description to be completed.

Distribution

2. Adventive
 

This species is considered an adventive, which is a species which arrives in the British Isles with the direct assistance of an external vector, without which it would not be present. Adventives are species that one would not expect to find in this country, either through inadvertent migration or through any other natural means of dispersal, with the exception perhaps of the most extreme meteorological event or possibly the transportation of a stage in the life cycle in a highly unlikely but natural means (e.g. an ovum or larva being transported upon the foot, bill, or plumage of a migratory bird).

Life Cycle

Description to be completed.

Imago

Description to be completed.

Description to be completed.

Pyrgus armoricanus

Oberthur's Grizzled Skipper - Les Alpilles - Nr. La Caume - France - 09/07/14

Photo © William
09-Jul-2014

Oberthurs Grizzled Skipper - imago - Pirin, Bulgaria - 07-Jul-07

Photo © Pete Eeles
07-Jul-2007

Oberthur's Grizzled Skipper male - Var, France 13-May-2011

Photo © Roger Gibbons
13-May-2011

Oberthurs Grizzled Skipper - imago - Spain - 08-Jul-08 [Andrew Burns]

Photo © Andrew Burns
08-Jul-2008

Oberthur's Grizzled Skipper male - Var, France 15-May-2011

Photo © Roger Gibbons
15-May-2011

Oberthür's Grizzled Skipper

Photo © traplican

Oberthur's Grizzled Skipper female - Var, France 12-May-2012

Photo © Roger Gibbons
12-May-2012

Oberthür's Grizzled Skipper female upperside

Photo © traplican

Oberthür's Grizzled Skipper female upperside

Photo © traplican

Oberthür's Grizzled Skipper - Alpes-Maritimes - 5 October 2011

Photo © CFB
05-Oct-2011

Oberthur's Grizzled Skipper underside, Parc du Mercantour, Alpes-Maritimes, France, 11th July 2014

Photo © David M

Oberthur's Grizzled Skipper - Switzerland 7-May-2016

Photo © Padfield
07-May-2016

Oberthur's Grizzled Skipper - Pyrenees Orientales, 24 May 2016

Photo © David M

Photo Album (13 photos) ...


Ovum

Description to be completed.

Pyrgus armoricanus - Ovum [Wolfgang Wagner]

Photo © Wolfgang Wagner
www.pyrgus.de

Photo Album (1 photos) ...


Larva

Description to be completed.

Description to be completed.

Pyrgus armoricanus - Larva [Wolfgang Wagner]

Photo © Wolfgang Wagner
www.pyrgus.de

Photo Album (1 photos) ...


Pupa

Description to be completed.

Pyrgus armoricanus - Pupa [Wolfgang Wagner]

Photo © Wolfgang Wagner
www.pyrgus.de

Photo Album (1 photos) ...


Aberrations

Description to be completed.

Click here to see the aberration descriptions and images for this species.

Similar Species

No similar species found.

Videos

No videos are currently available for this species.

The following links provide additional information on this butterfly.

References

The species description provided here references the following publications:

ReferenceDetails
Barrett (1892) Barrett, C.G. (1892) Occurrence of Syrichthus alveus, Hüb., in England. Entomologist's Monthly Magazine.
Barrett (1893) Barrett, C.G. (1893) The Lepidoptera of the British Islands (Vol.1 Rhopalocera).
Burmeister (1878) Burmeister, H., Daireaux, E. and Maupas, E. (1878) Description physique de la République Argentine: d'après des observations personnelles et étrangères par H. Burmeister ; traduit de l'allemant par E. Maupas.
Hübner (1819) Hübner, J. (1819) Verzeichniss bekannter Schmettlinge.
Howarth (1973) Howarth, T.G. (1973) South's British Butterflies.
Latreille (1809) Latreille, P.A. (1809) Genera crustaceorum et insectorum secundum ordinem naturalem in familias disposita, iconibus exemplisque plurimis explicata.
Oberthür (1910) Oberthür, C. (1910) Etudes de Lépidoptérologie comparée.