The Moths of Suffolk
1718 Oblique Striped, Phibalapteryx virgata, (Hufnagel, 1767)

National Status : Notable Nb

Local Status : Resident (SMP Status 3)

Distribution and abundance : Localised to the Brecks, where it can be locally common. A singleton record from the Ipswich area is of uncertain origin.

Habitats : Grassland and heathland

Flight Period : Double-brooded; late April to June and July to August

Larval foodplants : Lady's Bedstraw

Morley's Final Catalogue : Local, now in the north only, on sandy heaths and sea-denes; extinct along the Orwell valley; and but one found at Hemley, in 1903 (Waller). On the Devil's Ditch and Newmarket Heath by Rev. L. Jenyns (Stephens 1831, 258). Newmarket heath (Brown); Thetford (Williams); Icklingham (Wrt); Barnham (Norgate); common on Barnham heath (Sparke). Covehithe (Curtis about 1825); Benacre and Kessingland (Crf, probably extinct). Still annually on both the Yarmouth north and south denes (Ellis), but none found south of the border.

Wingspan details : Forewing 10-12mm, Wingspan 22-25mm

Identification

Confusion species
    AdultOblique Carpet, Orthonama vittata
Many-lined, Costaconvexa polygrammata

Compare confusion species
    Adult

Click to view full size image
Ramparts Field, Suffolk (10.viii.2005) © Lee Gregory

Flight chart
JFMAMJJASOND
11 32 100 32 44

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

Further Photographs

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Ramparts Field, Suffolk (10.viii.2005) © Lee Gregory
Icklingham Triangle, Suffolk (16.v.2006) © Stuart Read
Cranwich Camp, Norfolk (21.iv.2012) © A Prichard
 
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Flushed from grassland by day - Icklingham triangle, Suffolk (26.v.2013) © Neil Sherman
Female, flushed from grassland by day - Icklingham triangle, Suffolk (26.v.2013) © Neil Sherman