Cetoniidae Leach, 1815

Costa-Silva, Vinícius da, Ferreira, André da Silva, Bordin, Bruna R., Basílio, Daniel S., Rodrigues, Diego F., Gama, Emanuel R. R., Fuhrmann, Juares, Mariano, Júlia, Bevilaqua, Marcus, Cherman, Mariana A., Duarte, Paulo R. M., Grossi, Paschoal C. & Vaz-de-Mello, Fernando Z., 2024, Brazilian Scarabaeoidea (Insecta: Coleoptera) in the Taxonomic Catalogue of the Brazilian Fauna, with a key for families and subfamilies, Zoologia (e 23075) 41, pp. 1-37 : 10

Cetoniidae Leach, 1815

Figs 4H–I, 6I

Diagnosis. Mandibles with small incisivus, hidden by the clypeus when observed dorsally. Procoxae conical and project ventrally. Many species have a post-humeral elytral emargination, and the mesepimeron is clearly visible in dorsal view ( Krikken 1984, Cherman and Morón 2014; Fig. 6I).

Remarks. Cetoniidae are a very popular group in expositions due to their vibrant colors and significant horn variation. Many species hold ecological importance, as they act as predators of other insects, contribute to organic matter degradation (particularly decaying fallen fruit), and serve as pollinating agents ( Krikken 1984). Species of Cetoniidae are typically collected using fruit baits in canopy traps when not found on natural resources.

It is a cosmopolitan group of beetles, with approximately 4,500 species described within about 500 genera ( Schoolmeesters 2023). In Brazil, 84 species in 22 genera are known, distributed among five tribes in two subfamilies ( Rodrigues et al. 2023). There are foundational works that can be used for identification, providing keys to the genera and species found in Brazil. These keys can also be used to identify species from other regions.

Researching by tribe in Cetoniinae, we can identify only genera of the New World Cremastochelini in the works of Howden (1971), Krikken (1976, 1981), and MartÍnez (1992). Species of the genus Euphoria Burmeister, 1842 , the only member of the Cetoniini present in Brazil, can be identified in Orozco (2012). For the Gymnetini , there are works by Shaughney and Ratcliffe (2015), Ratcliffe and Deloya (1992), and Ratcliffe and Micó (2001), as well as numerous studies by Ratcliffe (2005, 2010, 2011, 2013, 2014a, 2014b, 2015a, 2015b, 2018, 2019). In the Trichiinae , Trigonopeltastes Burmeister & Schaum, 1840 , is the only known genus of Trichiini in Brazil whose species can be identified in Howden and Joly (1998), Ricchiardi (2003), and Smith (2016). Finally, the Incaini (also referred as “ Incini ”, see Sousa and Seidel 2021) are covered in the works of Ricchiardi (2002), Seidel et al. (2018), and Sousa and Seidel (2021).