D. M.  Maddox, Joley, D. B., and Pitcairn, M. J., ?Studies on the biology of the gorse seed weevil, Exapion ulicis (Forster 1771), in Northern California (Coleoptera: Curculionidae)?, Pan-Pacific Entomologist, vol. 83, pp. 32-40, 2007.

D. M.  Maddox, Joley, D. B., and Pitcairn, M. J., ?Studies on the biology of the gorse seed weevil, Exapion ulicis (Forster 1771), in Northern California (Coleoptera: Curculionidae)?, Pan-Pacific Entomologist, vol. 83, pp. 32-40, 2007.

J. T.  Davies, Ireson, J. E., and Allen, G. R., ?The phenology and impact of the gorse seed weevil, Exapion ulicis, on gorse, Ulex europaeus, in Tasmania?, Biological Control, vol. 45, pp. 85-92, 2008.

M.  Barat, Tarayre, M., and Atlan, A., ?Genetic divergence and ecological specialisation of seed weevils (Exapion spp.) on gorses (Ulex spp.)?, Ecological Entomology, vol. 33, pp. 328-336, 2008.

M.  Barat, Vernon, P., Tarayre, M., and Atlan, A., ?Overwintering strategy of two weevils infesting three gorse species: When cold hardiness meets plant-insect interactions?, Journal of Insect Physiology, vol. 56, pp. 170-177, 2010.

M.  Barat, Tarayre, M., and Atlan, A., ?Plant phenology and seed predation: interactions between gorses and weevils in Brittany (France)?, Entomologia Experimentalis Et Applicata, vol. 124, pp. 167-176, 2007.