Spider species?

Spider species?

Observation - Spider species? - UK and Ireland. Description: Found in the wetlands. It was in a silken wrap inside a reed stalk. The stalks inhabited by these spiders are dry from the lair entrance up. The entrance is a very small hole. In one of these I found a beetle that didn't look very alive. Food store? The

Found in the wetlands. It was in a silken wrap inside a reed stalk. The stalks inhabited by these spiders are dry from the lair entrance up. The entrance is a very small hole. In one of these I found a beetle that didn't look very alive. Food store?
The second picture shows the inside of the lair.