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Oak Eggar Lasiocampa quercus Wingspan 45-70mm. An impressive, broad-winged moth. Male is day-flying, larger female is nocturnal. Adult male has reddish-brown wings with a curved yellowish crossband and white central spot; female has similarly patterned wings but the ground colour is buffish-yellow. Flies July-August. Larva is brown and hairy; feeds mainly on Heather. Widespread and locally common, mainly on heaths and moorland.