Someone assured me it was a Brown Argus but I wasn't convinced, so thanks David for clarifying the situation.

Taken in York a week ago, anyone any ideas, thanks for looking

Hi again,

I managed to collect the pupa intact the following day and this emerged from it overnight (Mar.13th)
Well ID-ed Vince!

Hi Vince,

I did suspect it may be a Green-veined White pupa so thanks for your second opinion. It's not a species I've seen the early stages of before so I'll go back and try and remove it intact and rear it through just to make absolutely sure.

Charlie.

Can anybody put a name to this one? I found it today in West Yorks but didn't bring it home.Thanks for looking. Charlie.

Thanks for that Jon. It does sound a plausible theory even if it's not true. Maybe it's just the sticky nature of the droplets that deter predators such as spiders from having a go.

Hi all, Having ventured in to the butterfly rearing world just recently I was looking at some photos I took of some recently emerged Orange-tip larvae and noticed they all had tiny droplets at the end of their hairs.I presume this is normal, does anyone know the purpose of these? 1553 Orange-tip lar...