Spider ID please

Spider ID please

Observation - Spider ID please. Description: Small spider with large, dark, shiny abdomen, living in roof of bee hive. Wasp prey nearby.Probable wax moth cocoon in centre. A few minutes later I watched a wasp attack and kill another of these spiders, taking off with it and chewing it up on a grass s

Small spider with large, dark, shiny abdomen, living in roof of bee hive. Wasp prey nearby.Probable wax moth cocoon in centre. A few minutes later I watched a wasp attack and kill another of these spiders, taking off with it and chewing it up on a grass stalk nearby.