First report of harpellales from the Dominican Republic (Hispaniola) and the insular effect on gut fungi.

We present the first report of Harpellales (Kickxellomycotina) from Hispaniola. The Dominican Republic was surveyed, and members of the ecological group trichomycetes were encountered in the gut of their arthropod hosts. Among Harpellales we describe a new species, Smittium caribense, and report the presence of seven previously known species that are new for Hispaniola: Genistellospora homothallica, Harpella amazonica, Harpella tica, Legerio-m myces rarus, Smittium culisetae, Smittium dipterorum and Stachylina grandispora. The dominance of cosmopolitan, dipteran-associated species is the most outstanding effect resulting from the insularity on gut fungi.