Red underwing skipper - Spialia sertorius

Family: Hesperiidae.

Flight Time: April/June July/August.

Size: 22-26mm






This small sized Grizzled skipper, has quite strongly characteristic red undersides to its hindwing, which is visible in the lower of the two pictures. There is also a line of small white specks in the submarginal area on the upperside of both wings.

This particular specimen was photographed in the Picos de Europa, just north of Potes in August.


Another top view
Another underside.

Fact File

Similar Species Foodplants Habitat Distribution

Phlomis species

Flowery places, often amongst scrub.

Red underwing skipper distribution.


Early Stages




All pictures in these pages copyright to Simon Coombes. Permission must be sought and obtained for any use.