The inset cover image shows an empidid fly feeding on a pollination drop of the ambophilous gymnosperm Ephedra minuta. The chemical profile of the ovular secretions identified higher sugar content and presence of specific amino acids that are known to influence insect feeding behaviour and physiology. Ginkgo biloba also showed a profile typical of ambophilous taxa, suggesting that insect pollination either exists but is undocumented, or has existed in the past. See Nepi et al. (pp 923–936).