Italian distribution of Lucanus cervus (red dots) and L. tetraodon (grey dots and squares); sites with the presence of both species are indicated with blue dots (Bartolozzi and Maggini 2007, modified).

 
 
  Part of: Bardiani M, Hardersen S, Redolfi De Zan L, Maura M, Mosconi F, Mancini E, Antonini G, Campanaro A, Mason F (2017) Monitoring of Insects with Public Participation. Layman’s Report. Advanced Books. https://doi.org/10.3897/ab.e22169