Photo © Mike Wall

Apple Ermine

Yponomeuta malinellus

Checklist Number
16.003 [B&F: 0426]

Verification
Record requires retention of specimen until confirmed, and may require dissection. Consult with CMR if unsure

Classification

Family:Yponomeutidae
Subfamily:Yponomeutinae
Genus:Yponomeuta
Species:malinellus
Authority:Zeller, 1838

Local in orchards throughout much of Britain as far north as the central lowlands of Scotland, but less common than formerly, probably because of the extensive use of insecticides (MBGBI Vol 3). Widespread at low numbers across Hampshire and Isle of Wight, but there can be limited confidence about the accuracy of many records as the adult moth cannot be reliably differentiated from Y. padella as an imago: although Orchard Ermine Y. padella is normally greyish while the present species has a white ground colour to the forewing, but the two species only reliably separated with reference to the larval foodplant. Specimens should be recorded as Yponomeuta padella/malinellus agg., unless it is made clear that they were recorded as an occupied larval web or reared from the relevant larval foodplant. Larva feeds on Apple, living gregariously within a silken web.

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)