G.  Broad, ?Checklist of British and Irish Hymenoptera - Ichneumonidae.?,  Biodiversity Data Journal, vol. 4, p. e9042, 2016.

S.  Klopfstein, Langille, B., Spasojevic, T., Broad, G., Cooper, S. J., Austin, A., and Niehuis, O., ?Hybrid capture data unravel a rapid radiation of pimpliform parasitoid wasps (Hymenoptera: Ichneumonidae: Pimpliformes)?, Systematic Entomology, vol. published online, 2018.

G.  Else, Bolton, B., and Broad, G., ?Checklist of British and Irish Hymenoptera - aculeates (Apoidea, Chrysidoidea and Vespoidea)?, Biodiversity Data Journal, vol. 4, p. e8050, 2016.

N.  Dale-Skey, Askew, R., Noyes, J., Livermore, L., and Broad, G., ?Checklist of British and Irish Hymenoptera - Chalcidoidea and Mymarommatoidea.?,  Biodiversity Data Journal, vol. 4, p. e8013, 2016.

P.  Buhl, Broad, G., and Notton, D., ?Checklist of British and Irish Hymenoptera - Platygastroidea?, Biodiversity Data Journal, vol. 4, p. e799, 2016.