SeasonalityAdults fly from early June to early September.
IdentificationMale forewings are grey-brown and the antennae are yellow-brown. Male vertex is brown anteriorly, to pale yellow-brown posteriorly, female vertex is brown with white warts. Thorax is brown, to brownish yellow laterally in males and dark brown, to grey-brown laterally in females. Male legs are pale brown except the hindlegs, which are pale straw colour, female have unifrom yellow-brown legs. The lateral membranous lobes of the male aedeagus are small and each lobe has a single, very small black spine at the end of the small anteriorly directed tubular lobe (Nimmo, 1987).