Found under old cow pat.
No interactions present.
Jon summarises the features very clearly. A confusion is caused by the three Carinarion species, circumscriptus, fasciatus and silvaticus, not having been separated till the 1960s, and the names 'fasciatus agg.' and 'circumscriptus agg.' have both been used for the trio together.
Although the yellow pigment in A. fasciatus is a good feature, when A. circumscriptus ages, especially if it lives into a second year, it often goes a bit yellowish; but the black speckles on the upper side remain diagnostic.
Lat/Lng: 51.3007, -0.1789
OS grid ref: TQ270573