I noticed a small aggregation of nest holes in a local sandy path in Staffordshire today. The holes were visited by small black wasps and I managed a rather poor photograph of one returning to the area with prey impaled on its sting. I'm pretty sure this is an Oxybelus sp. because of the impaling behaviour - the cream-coloured abdominal markings are just discernible too.
I have read that Oxybelus prey on diptera. I'm not sure what this prey item was; but not a dipteran. Is this unusual?
I shall return to the area and attempt some better photographs. I understand that O. uniglumis is the only species reported in Staffordshire.