Distribution, phenology and habitats of the lesser dung fly species (Diptera, Sphaeroceridae) of Sweden and Norway, with notes from adjacent countries

A total of 133 species of lesser dung flies (Diptera, Sphaeroceridae) are here recorded from Sweden and Norway. More than 35,000 specimens, mainly preserved in alcohol, were studied. From this material, the species Minilimosina hispidula Rohacek, 1988, and the subspecies Sphaerocera pseudomonilis hallux Rohacek & Floren, 1987, were previously described. Four additional new species in the genera Trachvopella, Opacifrons, Minilimosina and Telomerina will later be described by J. Rohacek and S. A. Marshall. Other unidentified specimens are still being examined by specialists. This will probably increase the number of species known from this region to well over 140. Some species records are also given for Denmark, Finland and Iceland. Recorded for the first time are 62 species from Sweden, 25 from Norway, and one from Iceland. For each species, information is provided on adult phenology, recorded habitats, and successful collecting methods.