Contribution to the knowledge of urban moth midges in the Netherlands (Diptera: Psychodidae)

Moth midges constitute a permanent element of the fauna of the urban environment. The occurrence of species in this biotope is discussed on the basis of light captures by the author in the small town of Soest, samples collected indoors by several contributors and complemented with some swept and hand collected specimens. Two taxonomic issues concerning the genus Psychoda s.l. are discussed: the division into subgenera, and the taxonomic status of P. albipennis and its closest relatives. Some minor errors in the Dutch and European Psychodidae checklists are pointed out. The distribution data on the invasive species Clogmia albipunctata in the Netherlands are updated. Fifteen to twenty species of moth midges can be considered common in the urban biotope in the Netherlands, most of these belonging to the genus Psychoda. Outdoors, I? trinodulosa is the most often collected species. Inside buildings, P. albipennis, P satchelli, P. cinerea, P. alternate and C. albipunctata are common. The same five species as well as P. minuta occurred out-doors in a container for organic household waste. Two species, Psychoda setigera and Trichopsychoda hirtella are added to the Dutch checklist and illustrated with photographs of genitalia.