Plant Parasites of Europe

leafminers, galls and fungi

Spialia sertorius

Spialia sertorius (Hoffmannsegg, 1804)

red underwing skipper


Young larvae make a tiny blotch; soon they live among spun leaves.


Rosaceae, monophagous (?)

Sanguisorba minor.

Also Potentilla and Rubus are mentioned; perhaps the species is less selective in some parts of its distributional area.


Young larvae in July (de Wilde, 1991a).


BE recorded (Phegea, 2010).

NE recorded waargenomen (Kuchlein & de Vos, 1999a)l extinct.

LUX recorded (Fauna Europaea, 2010).

distribution within Europe

From Germany and Poland to the Iberian Peninsula and Italy, and from France to Hungary (Fauna Europaea, 2010).

egg, larva, pupa

The mining larva is yolk-yellow; in the free living stage, full fed, the caterpillar is dull blackish brown with three interrupted yellow length lines and has numerous long erect hairs. Pictures on Lepiforum


Hesperia sao (Hübner, 1803).


Bink (1992a), Dupont, Luquet, Demerges & Drouet (2013a), Hering (1957a, 1964a), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Lepiforum (2021), Maček (1999a), Skala (1948a), Szőcs (1977a), Tax (1989a), Vegliante & Zilli (2007a), de Wilde (1991a).

Last modified 20.iv.2021