I found several smaller whiter versions of this larva on garden manure bag yesterday. Could only see this one today. They all have the weird pointy aerial thing. Could you tell me what they are. Thanks
These are the larvae of some hoverflies (family Syrphidae). The 'tail' is a breathing organ, a bit like a snorkel, as the larvae live in water or various organic-rich liquids. They are called 'rat-tailed maggots'.
Ah, yes, thanks - snorkel fascinating. Looked them up under Syrphidae and they appear to be the bee look-alike Drone flies. As I have many whitefly in my Honeysuckle wanted them to be aphid eating ones but are pretty interesting in their own right.