Apis catula GRAVENHORST 1807; Apis nigella GRAVENHORST 1807; Megachile lignisecula COCKERELL 1924;
One of a suite of eight superficially similar species. All are medium-sized to large solitary bees nesting in holes, largely in various forms of timber either in standing deadwood or fence posts.
An uncommon species more frequently found in the south-east of mainland Britain. It has a more scattered distribution further north, seemingly reaching its extremity in north Yorkshire and two recent records from Staffordshire. There is also a cluster of records from south Wales though apparently absent from north Wales. Also recorded from Ireland but apparently absent from the Channel Islands. Occurs in western and central Europe, also in Finland and parts of European Russia.