Last modified: Nov. 26, 2023, 2:17 p.m.
This cosmopolitan species is very rare in Belgium.
Wingspan 12–16 mm. It has a short forward pointing tuft on the head. Males are dark brown to black with a conspicuous white ocellus and dorsal patch. The pre-tornal triangle pattern is characteristic. Females are pale brown to tan with a dark basal patch that does not extend to the costa. Males lack a forewing costal fold.
Late instar larvae are approximately 8-10 mm in length. The abdomen varies in color from whitish to yellowish brown to dark reddish brown. The head is yellowish brown to dark brown with black posterolateral margins. The prothoracic shield is dark yellowish brown. Pinacula are small and body colored. An anal comb is present with 4-6 teeth.
The larva feeds usually in seeds and shoots and sometimes in twigs on the host plant. Pupation in a fragile cocoon in plant debris. Hibernates in the egg stage. The adults are active from dusk onwards and later come to light.
The adults have been observed from early June till late November in one or two generations a year.
Can be seen everywhere.