D. P.  Sumner, ?European Micropezids & Tanypezids Newsletter 4?, Bulletin of the Dipterists Forum, vol. 94, 2022.

D. P.  Sumner, ?European Micropezids & Tanypezids Newsletter 3?, Bulletin of the Dipterists Forum, vol. 91, pp. 1-6, 2021.

D. P.  Sumner, ?European Micropezids & Tanypezids Newsletter 2?, Bulletin of the Dipterists Forum, vol. 89, p. 2, 2020.

D. P.  Sumner, ?European Micropezids & Tanypezids Newsletter 5?, Bulletin of the Dipterists Forum, vol. 96, pp. 1-6, 2023.

D. P.  Sumner, ?Biogeography, Phenology & Status of Micropezids & Tanypezids in the UK (Diptera, Nerioidea & Diopsoidea)?, Dipterists Forum, A, 11, 2021.

D. P.  Sumner, ?Biogeography, population dynamics and status of Micropeza lateralis Meigen, 1826 (Diptera, Micropezidae) in Europe?, Preprint, 2021.

D. P.  Sumner, ?Observations on Phytomyza orobanchia Kaltenbach, 1864 (Diptera, Agromyzidae) and Chyliza extenuata Rossi, 1790 (Diptera, Psilidae), both new to Wales, on Ivy Broomrape (Orobanche hederae)?, Preprint, 2021.

D. P.  Sumner, ?Deadwood & Diptera?, 2019.

D. P.  Sumner, ?British Isles Atlas: Micropezids & Tanypezids (Diptera, Nerioidea & Diopsoidea) 2016?, Dipterists Forum Open Access, vol. 1, pp. 1?55, 2018.

D. P.  Sumner, ?Vernacular names: European Micropezids & Tanypezids (Diptera, Nerioidea & Diopsoidea)?, Dipterists Forum Open Access, vol. 1, pp. 1?14, 2018.

D. P.  Sumner, ?European Atlas: Micropezids & Tanypezids (Diptera, Nerioidea & Diopsoidea)?, Dipterists Forum Open Access, vol. 1, pp. 1?94, 2018.

D. P.  Sumner, ?Key to the identification of Diopsoidea?, in teaching material for Dipterists Forum workshops, 2004.

D. P.  Sumner, ?Dipterists Forum - Recording Scheme - Stilt & Stalk Flies. Occurrence Dataset?, GBIF.org. 2017.

D. P.  Sumner, ?Key to the Identification of Nerioidea?, in teaching material for Dipterists Forum workshops, 2004, p. 18.