“…Most substances are acids (Ortius-Lechner et al, 2000;Yek & Mueller, 2011;Yek et al, 2012;Fernández-Marin et al, 2015) and protein substances (Yek et al, 2012), with antimicrobial function (Yek et al, 2012;Mendonça et al, 2009;Pech & Billen, 2017). The mandibular glands, venom gland and Dufour gland also present a broad spectrum of chemical compounds with proven toxic, repellent and antimicrobial effects (Mendonça et al, 2009;Quinet et al, 2012;Tragust, 2016).…”