Oria musculosa Hiibner Brighton wainscot moth

Although an important pest of cereals (mainly barley) in parts of central and eastern Europe, this moth has only relatively recently become established in the British Isles where it sometimes causes minor damage to cereal crops in parts of Wiltshire. The larvae attack the stems and also the developing ears, often feeding on the latter whilst these are still hidden within the leaf sheaths.

BIOLOGY

The moths occur from mid-summer to early autumn and deposit their eggs in large batches on stubble, on rocks or directly on the lower parts of the stems of host plants. The eggs overwinter and hatch from March onwards. The larvae feed until June, and each is capable of damaging up to 20 stems. Pupation occurs in the soil.

DESCRIPTION

Adult 28A34 mm wingspan; forewings ochreous with two longitudinal whitish-ochreous bands; hindwings greyish with whitish cilia. Larva up to 30 mm long; body pale green with dark green subdorsal stripes; pinacula and spiracles small and black; head ochreous-yellow; pro-thoracic plate greenish-ochreous, marked with black.

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