Language: English with bilingual abstract in English and Welsh
The Diptera (Insecta, True Flies) have been surveyed at the Kenfig National Nature Reserve, Glamorgan, Wales. An annotated species list is given, with notes on distribution, and where appropriate, notes on biology of the 956 species found. In the case of old records, synonymies are given where confusion as to species names may arise. An introduction to the site is also provided.