Seventy new Diptera -- key to the Pseudoleria, Helomyzidae, Tipulidae, Chiromidae, Dixinae, Orphnephilidae, Mycetophilidae

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith