5.5 mm long - another victim of the cow trough!
No interactions present.
I have a few trough's outside the house and I saw a program were they had floating wooden grates on them to stop bird's especially Barn owl's getting stuck and drowning,so I did the same and it even work's with insect's as they crawl on the wood but the stock can still drink,and I can sleep at night.
Thanks for this information. It sounds like a worthwhile project.
for steep-sided ponds and troughs is to put in a short plank, weighed down at one end with a stone, and resting on the top at the other end.
This provides an escape ramp for those small mammals that have left their brains at home.
Don't use treated timber.
Postscript: lovely little creature!
Lat/Lng: 51.304164813153, -0.1786994934082
OS grid ref: TQ270576
Chalk grassland SSSI