Parasitoids of 185 British herbivorous insect species were classified as being koinobionts (tending to be specialists) or idiobionts (potential generalists) to examine the influences of host feeding-niche and food plant type on the numbers of parasitoid species attacking individual host species. The majority of parasitoid species of exophytic (internally feeding)...
An obituary is given of E.C. Pelham-Clinton (1920-88), best known as co-author (with J.A. Campbell in 1960) of a taxonomic revision of the British Culicoides. A bibliography of his publications is appended.