Glow worm reports 2026

 F = glowing females by night, M = males, L = larvae.  NR = nature reserve; CP = country park. Only peak numbers during a season are shown, so not every record received is listed. 

Links are given only for publicly accessible sites, although we do not check that all sites are on full public access. Please note that the arrows on the linked maps may only be accurate to within 100-200 metres, so do not go on to private land or a garden on the basis of the arrow alone.  County names are those traditionally used for biological recording. Information is supplied on the basis of reports received and we can't guarantee that you will see any!

Thanks to Helen Welch for compiling the listing.

For more information about the UK Glow Worm Survey or to report where you've seen one, please go to www.glowworms.org.uk .

20 April

Private garden, Lambourn, Berks

18 April

Private land, Carreg Cyn Ffyrdd, Carmarthen

West Blean Wood, Sturry, Kent TR170637  1L by day

Glanyrafon, Llansadwrn, Carmarthen SN685326  1L by day

Hetty Pegler’s Tump, Uley, W.Glocs SO79140003  1L by day  

17 April

Low Common, Rockland St Mary, Norfolk TG32150379   1L by day

15 April

Wylye, S.Wilts SU00283742  1L by day

14 April

Hill Farm, West Ansty, N.Devon SS84762692  1L by day  

13 April

Flordon Common, E.Norfolk TM18079738  1L by day

Crag Farm, Muncaster, Cumberland SD129970  1L by day  

12 April

Crete Road, Folkestone, Kent TR213381  1L by day

Pennsylvania Castle, Easton, Portland, Dorset SY69727111  1L by day

11 April

Pantymwyn, Flintshire SJ19446377   1L by day 

10 April

Martin Down NNR, Hants SU048188  1L by day

Stool End, Great Langdale, Cumbria, Westmorland NY271057 1L by day 

9 April

North Sheephouse Wood, Edgcott, Bucks SP697235  1L by day

RSPB Arne, Wareham, Dorset SY976871   1L by day

7 April

Oxwich Bay NNR, Glamorgan SS50258694  1L by day

Normanhurst Estate, Catsfield, E.Sussex TQ71531409  1L by day

6 April

Bolberry Down, Salcombe, Devon SX69143821   1L by day

5 April

Kenfig NNR, Glamorgan SS79418294 10L by day

4 April

Oughtonhead NR, Hitchin, Herts TL16963039 

1 April

Kingswood Forest, Challock, Kent TR02855039  1L by day

23 March

Battlesbury Bowl SPTA W, Warminster, Wilts ST90174657 1L by day

Merrist Wood, Worplesdon, Guildford, Surrey SU95835376  1L by day 

Forest School, Sevenoaks NR, Kent TQ52155670  1L by day 

21 March

Private Garden, Duddington, Northants 

Towpath, Wey & Arun Canal, Loxwood, W.Sussex TQ04863091   1L by day

Newborough NNR, Llanfair PG, Anglesey  SH422642  1L by day

Margam Burrows, Port Talbot, Glamorgan SS780837  1L by day 

18 March

Curry Mallet, Somerset ST324218  1L by day

13 March

Little Bealings, Woodbridge, E.Suffolk TM230470  1L by day

5 March

Private garden, Woodrow, Dorset

4 March

Bullo, Newnham, W.Glocs SO68771016   1L by day

22 February

The Triangle, Brockweir, E.Kent SO54670185  1L by day 

13 February

Wattle Wood, Tenterden, Kent TQ87333541  1L by day

9 February

Felincoed, Carmarthenshire SN64312669  1L by day 

4 January

Empool Heath, W.Knighton, Dorset SY744876  1L by day