Luminous invertebrates

Observation - Luminous invertebrates - UK and Ireland. Description: Group of 5or6 motile spots of light on hard track by verge just before dawn on two occasions.Size of two pinheads approx. Nothing visible by torch, but I do need reading glasses!

Group of 5or6 motile spots of light on hard track by verge just before dawn on two occasions.Size of two pinheads approx. Nothing visible by torch, but I do need reading glasses!