“…In many cases, pheromone compounds are produced only by one gender, as in Nezara viridula L., Euschistus spp., Plautia stali Scott, Thyanta pallidovirens Stal, Piezodorus hybneri Gmelin, Biprorulus bibax Breddin, Chlorochroa sayi Stal, Thyanta perditor F., Thyanta pallidovirens Stal and Murgantia histrionica Hahn (Baker et al, 1987;Aldrich et al, 1991Aldrich et al, , 1994Brezot et al, 1994;James et al, 1994;Sugie et al, 1996;Millar, 1997;Borges et al, 1998;Leal et al, 1998;Ho & Millar 2001a;McBrien et al, 2002;Moraes et al, 2005;Zahn et al, 2008). In other cases, pheromones are produced by both sexes but with different gender-specific relative abundances, as in Geocoris punctipes Say and Leptocorisa chinensis Dallas (Leal et al, 1996;Marques et al, 2000).…”