The Moths of Suffolk
2286 Light Knot Grass, Acronicta menyanthidis, (Esper, 1789)

National Status : Local

Local Status : Locally extinct (SMP Status 4)

Habitats : Moorland, bogs, heathland

Flight Period : Single-brooded; late May to July

Larval foodplants : Low-growing woody plants

Records : No recent records

Morley's Final Catalogue : Two specimens were bred from forced pupae by the Revd. Joseph Greene at the end of March 1857 at Playford near Ipswich (Ent. Weekly Intell. ii, p. 11). Suffolk thus becomes an extension of this species ' range southwards. I possess one ancient unlocalised example (Mly).

Wingspan details : Forewing 16-20mm, Wingspan 34-42mm

Identification

Confusion species
    AdultScarce Dagger, Acronicta auricoma

Compare confusion species
    Adult

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Wales (2.vii.2005) © Lee Gregory

Life history chart
JFMAMJJASOND
pupa pupa pupa pupa pupaimago imago ovaimago larva larva pupa pupa pupa

Further Photographs

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Newtonmore (v.2004) © M Deans
Inverness-shire (22.v.2004) © L Gregory
Invernesshire (v.2005) © S Read
 
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Ross-shire (29.v.2008) © Lee Gregory
Male - Granish Moor, Inverness-shire (29.iv.2011) © Neil Sherman
Female found at rest by day on fencepost - Ralia, Inverness-shire (29.iv.2011) © Neil Sherman
 
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Found at rest on fence post by day - Dava Moor, Morayshire (11.v.2014) © Neil Sherman