Nolidae

74.005 Scarce Black Arches Nola aerugula (Hübner, 1793)

Immigrant / transitory resident

Similar species: The small size and lack of a strong curve in the outer central cross-line distinguishes this moth from similar species. Least Black Arches Nola confusalis is larger (9 to 11mm) and has more prominent crosslines. The outer central crossline is more rounded, the central crossline has prominent zig-zags and it has a bar across the thorax.

Forewing: 8 to 9mm

Habitats: In Britain it inhabitated sand-dunes. On mainland Europe it is found in damp woodland, dry woodland and open sandy places.

Habits: The moth rests on grass stems from dusk onwards and later comes to light.

Foodplant: The larva feeds on Common Bird's-foot Trefoil, vetches and clovers. It pupates at the base of the plant or in the leaf litter.

On the European mainland it has also been recorded feeding on medicks, cinquefoils, strawberries, bramble and birches.