“…Investigations on the richness of gall-inducing insects and their host plants have been carried out in different phytophysiognomies in Brazil (Araújo et al, 2019), including cerrado s.s. (e.g., Araújo et al, 2014;Campos et al, 2021), caatinga (e.g., Santos et al, 2011a;Carvalho-Fernandes et al, 2012), restinga (e.g., Maia, 2001Maia, , 2018, rocky fields (e.g., Carneiro et al, 2009b;Coelho et al, 2013a), dry tropical forest (Coelho et al, 2009), montane fields (Coelho et al, 2013b), and moist forest (e.g., Julião et al, 2005;Almada & Fernandes, 2011). There are still large gaps in our knowledge about the richness of gall-inducing insects of several phytophysiognomies of Northeastern Brazil, due to the large area and scattered studies con-centrated in two of its nine states, Bahia and Pernambuco (Santos et al, 2011b;Carvalho-Fernandes et al, 2012;Costa et al, 2014a, b;Nogueira et al, 2016;Alcântara et al, 2017;Brito et al, 2018;Santos et al, 2018;Silva et al, 2018;Vieira et al, 2018;Santos et al, 2019;Santana et al, 2020;Campos et al, 2021;Santos-Silva et al, 2022).…”