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Not really. All existing genus keys that exist are mostly outdated or misleading in terms of nomenclature, systematics and/or taxonomy. Genus-level taxonomy in Psychodinae is still very poorly explored, and it is likely to change.
The best is Vaillant's (1971-1983) key in E. Lidner's (ed.) Die Fliegen Der Palearktischen Region, which unfortunately is rather hard to find. It suffers from many weak points - the names are wrong for several of the genera, and many have been split since his time - but is still better than the other ones.