Large Yellow Underwing Noctua pronuba


Family Noctuidae » Subfamily Noctuinae » Noctua pronuba (Linnaeus, 1758) 73.342 (BF2107)
Forewing length 21-26 mm. This is one of the large and fast-moving moths of the night (what we would call a ‘Bob Howler’ here), and if you get one fly through your open kitchen or bathroom window you will certainly know about it as they dash about bouncing off the walls and ceilings in their panic. Quite a variable moth with differing ground colour and patterns as can be seen by comparison in these images. The yellow hindwings are pretty constant. The adult flies July to September, and are very much attracted to light. Found in many habitats, including parks and gardens. One of the most abundant of Britain’s larger moths, and widespread throughout. Numbers may be increased through migrating visitors.


Large Yellow Underwing Noctua pronuba
Large Yellow Underwing Noctua pronuba
Large Yellow Underwing Noctua pronuba

Larva


The larva feeds on a wide range of herbaceous plants and grasses.



Adults caught in moth trap or attracted to light, larva discovered in back garden, South Staffordshire. Photos © Peter Hillman.