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

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, ?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.