Larvae of O. sylvanus feeds on grasses. (17-7-2012)
O. sylvanus overwinters as a caterpillar. (female, 14-7-2012)
Males can be distinghuished from females by the thick black sex-brand on the upper forewing. (male, 12-7-2019)
Ochlodes sylvanus – Piippopaksupää – groot dikkopje