Only 13/14mm long.
No interactions present.
for that species, perhaps slighly yellower than I would expect but I think from the colour of the leaf that is a photographic artifact.
Interesting species to rear on, a lichen feeder and very cryptic when in its lichen enclosure.
See http://www.ispot.org.uk/node/14487 for an example.
Sorry but what is a photographic artifact?
I believe it's something in a photo that causes other things to change colour, often overexposure. In this case it would be the leaf. I think that's right!?
Yes, good find anyway, I've seen some examples of this species that are quite yellow, similar shade to yours, but they are usually a bit more orange..
Hi David, I found this little caterpillar climbing up concrete in January. I didnt know they were lichen feeders and I thought it was trying to find a secure place to pupate. It was returned to its wall after having its image taken at home where the camera was.
Dont be mislead by the colour. For some reason, when I upload from my memory card to my laptop, my images (taken on one specific camera and only it) lose a lot of colour. I then have to try to enhance the image without overdoing it, sometimes I over do it! Your eyes are not misleading you, my interference is!
One trick for digital photography is to take a photograph with a photographers grey card somewhere in the image. These are cards of a know colour (90% grey) so you can either use them to set you white balance when shooting or with photoediting software you can then adjust using that to set the white balance and get colours close to correct.
For example for voucher shots I tend to shoot on a grey card with a ruler to show scale - e.g. http://www.ispot.org.uk/node/241316
Lat/Lng: 55.0753, -6.0561
OS grid ref: NW411831