Epiphyas postvittana (Walker, 1863). F.L. 6-13 mm. Adventive. Common & Widespread.
Male smaller than the female. Male forewing with basal half pale yellowish, rest of wing reddish brown. Female more plainly marked.
Forest clearings and edges; parks and gardens; orchards; shrubland; plantations; dunes and waste ground. Adults may be found throughout the year, but mainly from October to April. They can be disturbed from vegetation by day, fly from dusk onwards and come to light.
The insect is regarded as an herbivorous generalist. Foodplants include many trees, shrubs and herbaceous plants: in a spinning among living and dead plant tissues, including flowers, leaves, fruits and seeds. Eggs are laid in batches of up to 130 on the upper side of leaves. The larvae feed in spun shoots and leaves of a large number of plants, including apple, raspberry, gorse, young radiata pine, tutu and acacia. Sometimes the larva will spin a leaf to a fruit, e.g., of apple, and damage the surface of the fruit. Pupation is in a cocoon spun between leaves.
It is an extremely variable species. An adventive from Australia.
Forewing | 5-9 mm, 9+ mm, broad, overlapping |
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Labial palps | pointing forwards |
Resting posture | held flat, horizontal |