The Distribution of the Ephemeroptera in Ireland

Abstract

An intensive field sampling on the Ephemeroptera commenced in the Zoology Department, University College Dublin in 1995. This programme ran for two years and supplemented existing records. Circa 400 river and lake sites were sampled from the major catchments in the country covering a wide range of habitat types. This study proposed 33 species for inclusion on the Irish list. The paper deals predominantly with species identification, their distribution and habitat preferences. Where possible other relevant ecological observations and comparisons with the ephemeropteran fauna from Britain and mainland Europe have also been included.