Checklist of the familes Chaoboridae, Dixidae, Thaumaleidae, Psychodidae and Ptychopteridae (Diptera) of Finland.

A checklist of the families Chaoboridae, Dixidae, Thaumaleidae, Psychodidae and Ptychopteridae (Diptera) recorded from Finland is given. Four species, Dixelladyari Garret, 1924 (Dixidae), Threticustridactilis (Kincaid, 1899), Panimerusalbifacies (Tonnoir, 1919) and Panimerusprzhiboroi Wagner, 2005 (Psychodidae) are reported for the first time from Finland.