Uliana, Marco, and Valerio Gallerati. “Updates on the Little-Known Firminus Maltensis, With Revisited Classification Based on the Anatomy of Everted Endophallus (Coleoptera: Scarabaeidae, Melolonthinae)”. Fragmenta entomologica 54, no. 1 (May 15, 2022): 19–26. Accessed February 2, 2023. https://rosa.uniroma1.it/rosa02/fragmenta_entomologica/article/view/718.