Large Grizzled Skipper

The Large Grizzled skipper (Pyrgus alveus) is a species of skipper butterfly (family Hesperiidae). Description This is a rather variable species with a wingspan of 22–32 mm (not always particularly "large") with several subspecies having been described. As with most Pyrgus species it has dark brown wings with pale chequered margins and is rather difficult to identify specifically in the field but good views reveal clear, well-spaced white spotting on the forewing and much fainter markings on the hindwings.

L’Hespérie rhétique (Pyrgus warrenensis) est une espèce de lépidoptères (papillons) de la famille des Hesperiidae, de la sous-famille des Pyrginae et du genre Pyrgus. Taxonomie Pyrgus warrenensis a été décrit par Ruggero Verity en 1928. Noms vernaculaires L'Hespérie rhétique se nomme Warren's Skipper en anglais.

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