Kenis, M., Roy, H.E., Zindel, R. & Majerus, M.E.N. (2007) Current and potential management strategies against Harmonia axyridis. BioControl, 53, 235-252.

Brown, P.M.J., Roy, H.E., Rothery, P., Roy, D.B., Ware, R.L. & Majerus, M.E.N. (2007) Harmonia axyridis in Great Britain: analysis of the spread and distribution of a non-native coccinellid. BioControl, 53, 55-67.

Roy, H.E., Brown, P.M.J., Rothery, P., Ware, R.L. & Majerus, M.E.N. (2007) Interactions between the fungal pathogen Beauveria bassiana and three species of coccinellid: Harmonia axyridis, Coccinella septempunctata and Adalia bipunctata. BioControl, 53, 265-276.

Pell, J.K., Baverstock, J., Roy, H.E., Ware, R.L. & Majerus, M.E.N. (2007) Intraguild predation involving Harmonia axyridis: a review of current knowledge and future perspectives. BioControl, 53, 147-168.

Brown, P.M.J. & Roy, H.E. (2007) The spread of the Harlequin Ladybird Harmonia axyridis in late 2006. Atropos, 31, 32-33.

Brown, P.M.J. & Roy, H.E. (2007) The spread of the harlequin ladybird in Cambridgeshire and Huntingdonshire. Nature in Cambridgeshire, 49, 55-57.

Brown, P.M.J., Roy, H.E. & Majerus, M.E.N. (2007) Update on the spread of an invasive ladybird. Biocontrol News and Information, 28, 16-17.

Kenis, M., Roy, H.E., Zindel, R. & Majerus, M.E.N. (2008) Current and potential management strategies against Harmonia axyridis. BioControl, 53, 235-252.

Roy, H.E. & Wajnberg, E. (2008) From biological control to invasion: the ladybird Harmonia axyridis as a model species. From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species. (eds H.E. Roy), & Wajnberg, E.), pp. 1-4. Springer Netherlands, Dordrecht.

Roy, H.E. & Wajnberg, E. (2008) From biological control to invasion: the ladybird Harmonia axyridis as a model species. From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species. (eds H.E. Roy), & Wajnberg, E.), pp. 1-4. Springer Netherlands, Dordrecht.

Murchie, A.K., Moore, J.P., Moore, G.A. & Roy, H.E. (2008) The harlequin ladybird, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), found in Ireland. Irish Naturalists' Journal,, 29, 25-26.

Holroyd, O., Brown, P.M.J., Roy, H.E. & Majerus, M.E.N. (2008) The harlequin ladybird, Harmonia axyridis, reaches Scotland. Entomologists’ Record and Journal of Variation, 120, 42-43.

Roy, H.E., Brown, P.M.J., Ware, R.L., Michie, L.J., Beckmann, B. & Majerus, M.E.N. (2008) The harlequin ladybird marches on. British Wildlife, 19, 182-186.

Brown, P.M.J., Adriaens, T., Bathon, H., Cuppen, J., Goldarazena, A., Hägg, T., Kenis, M., Klausnitzer, B.E.M., Kovář, I., Loomans, A.J.M., Majerus, M.E.N., Nedved, O., Pedersen, J., Rabitsch, W., Roy, H.E., Ternois, V., Zakharov, I.A. & Roy, D.B. (2008) Harmonia axyridis in Europe: spread and distribution of a non-native coccinellid. BioControl, 53, 5-21.

Brown, P.M.J., Roy, H.E., Rothery, P., Roy, D.B., Ware, R.L. & Majerus, M.E.N. (2008) Harmonia axyridis in Great Britain: analysis of the spread and distribution of a non-native coccinellid. From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species. (eds H.E. Roy), & Wajnberg, E.), pp. 55-67. Springer Netherlands.

Brown, P.M.J., Roy, H.E., Rothery, P., Roy, D.B., Ware, R.L. & Majerus, M.E.N. (2008) Harmonia axyridis in Great Britain: analysis of the spread and distribution of a non-native coccinellid. From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species. (eds H.E. Roy), & Wajnberg, E.), pp. 55-67. Springer Netherlands.

Roy, H.E. & Roy, D.B. (2008) Harmonia Axyridis. In: Handbook Of Alien Species In Europe. (Ed.: Daisie). Springer series in Invasion Ecology.

Brown, P.M.J., James, T.J., Stewart, A.J.A. & Roy, H.E. (2008) Mapping insect distributions in the 21st Century: a role for the Royal Entomological Society in partnership with the Biological Records Centre and the National Biodiversity Network. Antenna,, 32, 149-151.

Hill, M.O., Ames, S.L., Bacon, J., Botham, M.S., Lindsley-Leake, S., Marchant, J.H., Preston, C.D., Rehfisch, M.M., Roy, D.B., Roy, H.E., Tyler-Walters, H. & Wright, L. (2008) Non-Native Species Portal Feasibility Study. CEH, Huntingdon.

Roy, H.E., Hails, R.S., Hesketh, H., Roy, D.B. & Pell, J.K. (2009) Beyond biological control: non-pest insects and their pathogens in a changing world. Insect Conservation and Diversity, 2, 65-72.

Comont, R.F., McCracken, M.E., Hesketh, H., Hails, R.S. & Roy, H.E. (2009) Bivoltine Blues: A second generation in the British Chalkhill Blue Polyommatus coridon (Lepidoptera: Lycaenidae). British Journal of Entomology and Natural History, 22.

Hill, M.O., Beckmann, B., Bishop, J.D.D., Fletcher, M.R., Lear, D.B., Marchant, J.H., Maskell, L.C., Noble, D.G., Rehfisch, M.M., Roy, H.E., Roy, S. & Sewell, J. (2009) Developing An Indicator Of The Abundance, Extent And Impact Of Invasive Non-Native Species. Final Report. Defra.

Parrott, D., Roy, S., Baker, R., Cannon, R., Eyre, D., Hill, M.O., Wagner, M., Preston, C.D., Roy, H.E. & Beckmann, B. (2009) Horizon scanning for new invasive non-native animal species in England.

Parrott, D., Roy, S., Baker, R., Cannon, R., Eyre, D., Hill, M.O., Wagner, M., Preston, C.D., Roy, H.E., Beckmann, B., Copp, G.H., Ellis, J., Laing, I., Britton, J.R., Gozlan, R.E. & Mumford, J. (2009) Horizon Scanning For New Invasive Non-Native Species In England. Report To Natural England (Natural England Contract No. Sae03-02-189). Central Science Laboratory, York.

Roy, H.E., Hesketh, H., McCracken, M.E., Pywell, R.F. & Hails, R.S. (2009) Living on the edge: interactions between Lepidoptera and parasites in fragmented habitats. Atropos, 37, 19-26.