Thursday, 19 August 2010

Micro ID

Found on a chestnut leaf, with numerous blotch mines, but this may be coincidental. Hampshire. Anyone know what this is ?

6 comments:

charlie streets said...

Hi, it's no coincidence, the moth is the Horse Chestnut Leaf Miner which is also causing the blotches. It's now well established in Calderdale since first arriving here in 2008.

ian and tina said...

It was on a sweet chestnut. Virtually every leaf on the tree had multiple blotch mines.

charlie streets said...

Ian or Tina, your moth is a Horse Chestnut Leaf Miner - it doesn't mine Sweet Chestnut leaves. Are you sure that they are mines and not fungal infections?

Some more info here:

http://www.leafmines.co.uk/html/Lepidoptera/C.ohridella.htm

charlie streets said...

Looking at the leaf in the photo (if it's the leaf the moth was found on) it would suggest Horse Chestnut and not Sweet Chestnut.

ian and tina said...

They were definetely mines - could see pupal cases at exit holes. Maybe my tree ID is at fault ??

charlie streets said...

Maybe, but still a good find and photo. It's not a species I've seen in the wild yet despite the abundance of mines there now is.