One of several feeding on an Alder tree.
No interactions present.
This isn't a species I've ever seen, but it looks the right shape for Agelastica alni. As you may know, it's a rare species in the UK, although has been spreading in the Manchester region in recent years.
Entomologist and biological recorder
The hand in the photo is that of a very knowledgeable entomologist who is particularly interested in Alder leaf beetles, hence I knew what it was. Unfortunately I didn't take a very good photograph but since then I spent the rest of the summer spotting them all over the place in north Manchester. I'll do my best to get a better picture this year and post it on ispot.
Excellent, in which case I'm happy to click on "I agree". As a general comment I'd recommending putting something in one of the comment boxes when an expert has identified something for you, it all helps provide additional support for the identifications on iSpot.
Lat/Lng: 53.5877, -2.3998
OS grid ref: SD736101