Cresporhaphis wienkampii en Leptorhaphis contorta, twee nieuwe schorsbewoners voor Nederland

Cresporhaphis wienkampii and Leptorhaphis contorta are reported for the first time from the Netherlands. The former was thought to be extinct worldwide, the latter was so far only known from N. America and Iceland. Both species have probably been overlooked, as they were found within walking distance from, respectively, the working laboratory and the living home of the author.