The Moths of Suffolk
1704 Silky Wave, Idaea dilutaria, (Hübner, 1799)

National Status : RDB

Local Status : Locally extinct (SMP Status 4)

Flight Period : Single-brooded; late June to July

Larval foodplants : Common Rock-rose and possibly other low-growing plants

Morley's Final Catalogue : Considered generally 'common' here before 1890; but later noticed, in any considerable numbers, only at Felixstow in mid-July 1902 (Mly).

Wingspan details : Forewing 8-10mm, Wingspan 20-22mm

Identification

Confusion species
    AdultDotted Border Wave, Idaea sylvestraria
Dwarf Cream Wave, Idaea fuscovenosa
Isle of Wight Wave, Idaea humiliata
Satin Wave, Idaea subsericeata

Compare confusion species
    Adult

Click to view full size image
North Wales (vii.2004) © M Deans

Flight chart
JFMAMJJASOND
100

Life history chart
JFMAMJJASOND
larval diapause larval diapause larval diapause larva larva pupa ovaimago larva larva larval diapause larval diapause larval diapause

Further Photographs

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North Wales (16.vii.2005) © Lee Gregory