Photo © Mike Wall

Knot Grass

Acronicta rumicis

Checklist Number
73.045 [B&F: 2289]

Verification
Record will be accepted (subject to date and location checks)

Classification

Family:Noctuidae
Subfamily:Acronictinae
Genus:Acronicta
Species:rumicis
Authority:(Linnaeus, 1758)

Common on grassland, heathland, marshes, gardens and a wide range of other habitats throughout much of the British Isles. In Hampshire and on the Isle of Wight widespread and common in all three vice-counties. Wingspan 35-43 mm. Superficially similar to other Acronicta species, it can usually be distinguished by the curved white mark near the rear edge of the forewing, which is normally present even in melanic specimens. Larva feeds on various herbaceous and woody plants, including Broad-leaved Dock, Common Sorrel, Ribwort Plantain, Greater Plantain, Water Mint, Bramble, Hop, Hawthorn and Burnet Rose, over-wintering as a pupa.

The abundance in each month is indicated as follows:

No records
Very occasional
Irregular
Uncommon
Off-peak, but not unusual
Off-peak, but not unusual
Main flight time
J F M A M J J A S O N D
Adult
Larval

Records by week (adult)

Records by week (larval)