local. A popular name for certain shiny beetles: see quots.

1

1847.  Halliwell, Sun-shiner, the dark shining beetle.

2

1866.  E. C. Rye, Brit. Beetles, 55. This family [sc. Feroniides] comprises several species, the most often seen … being the ‘Sunshiners,’ which are members of the genera Pterostichus and Amara.

3