70.018 Plain Wave Copyright Martin Evans
 70.018 Plain Wave Copyright Martin Evans
 70.018 Plain Wave and Riband Wave Copyright Martin Evans
 Distribution map Copyright Martin Evans
 Life stages table Copyright Martin Evans
 Life stages table Copyright Martin Evans  70.018 Plain Wave Copyright Martin Evans

Geometridae

70.018 Plain Wave Idaea straminata (Borkhausen, 1794)

Local

Similar species: Riband Wave Idaea aversata has an inward kink where the outer cross-line reaches the leading edge and usually has much darker cross-lines.

Forewing: 13 to 15mm

Habitats: Open woodland and heathland scrub and occasionally hedgerows, green lanes and established rough grassland.

Habits: The moth flies from dusk and comes to light.

Foodplant: The early stages have not been recorded in the wild. In captivity it accepts the leaves of sallows, Knotgrass, Dandelion and other low-growing plants. It pupates in the leaf litter.