Guy Edwardes / 2020VISION / Oil Beetle (Meloe proscarabaeus). Powerstock Common, Dorset, England, UK, April.

Nick Upton / Black oil beetle (Meloe proscarabaeus) walking on a coast path, seeking a site to dig a burrow for its eggs, north Cornwall, UK, April.

Nick Upton / Black oil beetle (Meloe proscarabaeus) starting to excavate a nest burrow in a footpath on a chalk grassland hillside, the Ridgeway, Wiltshire, UK, April.

Nick Upton / Black oil beetle (Meloe proscarabaeus) female excavating a nest burrow in coastal grassland, north Cornwall, UK, April.

Chris Mattison / Violet oil beetle (Meloe violaceus) on bark. Cadora Wood, Gloucestershire, England, UK. April.

Chris Mattison / Violet oil beetle (Meloe violaceus) on white background. Cadora Woods, Gloucestershire, England, UK. April.

Kerstin Hinze / Oil beetle (Meloe proscarabaeus) laying eggs in the ground, Filzwald, Bavarian Forest National Park, Germany, May.

Kerstin Hinze / Black oil beetle (Meloe proscarabaeus) laying eggs in hole. Filzwald, Bavarian Forest National Park, Bavaria, Germany. May.

Juan Carlos Munoz / Spanish fly (Lytta vesicatoria) on Stone pine (Pinus pinea) bark. Toledo, Castilla-La Mancha, Spain. April.

Alex Hyde / Blister beetle (Mylabris polymorpha) Nordtirol, Austrian Alps, July.

Nick Upton / Violet oil beetle (Meloe violaceus) walking on mossy woodland floor, Knapdale forest, Argyll, Scotland, UK, May.

Nick Upton / Violet oil beetle (Meloe violaceus), Knapdale forest, Argyll, Scotland, UK, May.