Factors influencing the production of pygidial secretions in the dung roller beetle Canthon smaragdulus (Coleoptera: Scarabaeinae) - Carvalho, Raquel; Ferreira-Châline, Ronara Souza; Audino, Livia D; Châline, Nicolas Gérard; Braga, Paula; Louzada, Julio (Australian Entomological Society, 2017)