For those in the London area who are not members of the London Natural History Society, we have a field trip to Cornmill Meadows 'Dragonfly Santuary' tomorrow (Saturday 16th May) to look at Odonata and everything else. It is a full day meeting, starting at Cheshunt station at 10:00. Guests are welcome. Details on the LNHS website.
Cheers, M.