Noctuidae » Xyleninae
73.193 BF2270 Lunar Underwing Omphaloscelis lunosa (Haworth, 1809)
Wingspan 32-38 mm. Forewing length 14-17mm. There is a dark ‘crescent moon’ marking on the pale underwing of this moth which gives it its name. The forewing ground colour is quite variable, ranging from yellowish-orange to dark brown. The paler veins give it a somewhat netted look.
The adult flies in one generation from mid-August to late October. It regularly comes to light, and is found in grassy areas like parks, gardens and downland. A resident species, it is common and widespread in the south, more localised further north. The larva feeds on grasses.
© Pete Hillman September 2017.