Depressaria silesiaca
Highland Yarrow Brown
Highland Yarrow Brown
Depressaria silesiaca
Highland Yarrow Brown
32.041 BF684
Wingspan c.13-16 mm.
A very local and scarce species in Britain, occurring in just a few localities in the Scottish Highlands. It is one of the smaller of the Depressariinae, and has the forewing suffused with pinkish brown scales and a few blackish streaks.
The larva, found in June and July, is known to feed on yarrow (Achillea millefolium) or tansy (Tanacetum vulgare), in a silken spinning or tube.
Adult moths are on the wing from August, and spend the winter in hibernation till the following spring.
Flight period
| Month | Records |
|---|---|
| January | 0 |
| February | 0 |
| March | 0 |
| April | 0 |
| May | 0 |
| June | 0 |
| July | 0 |
| August | 1 |
| September | 0 |
| October | 0 |
| November | 0 |
| December | 0 |
