Seq # 440050010

Thymelicus acteon (Rottemburg, 1775) Species

Last modified: March 15, 2022, 12:30 p.m.

A very rare and local species in Belgium. Hitherto only known from the southern part of the country. Seems to have disappeared from several of the former locations. Vulnerable.


Family: Hesperiidae > Subfamily: Hesperiinae > Genus: Thymelicus > Species: Thymelicus acteon
Vernacular names
Dwergdikkopje (NL), Lulworth Skipper (EN), Hespérie du chiendent (FR), Mattscheckiger Braundickkopffalter (DE)
First mention in Belgium
De Sélys-Longchamps E. 1837. Catalogue des Lépidoptères ou Papillons de la Belgique, précédé du tableau des Libellulines de ce pays. — — : 1–29. On page 20 (as Hesperia Actaeon [sic]). view page




Museum specimens

No pictures yet!

Specimens in nature

Flight periods

The adults fly in one generation a year; in the south of Europe it can already be on the wing from April on, in Belgium however mostly from July to halfway August.

Observed on

Host plant (species):
Brachypodium pinnatum

The larva lives on several species of Gramineae like Brachypodium, Calamagrostis and Elymus. Hibernates as a small larva in a cocoon attached to the food plant.

No pictures yet!