The first report of human biting by Lipoptena cervi from Slovakia.

The first bite by deer ked Lipoptena cervi (Linnaeus, 1758) on humans has been reported from Slovakia. The host was bitten on the head and neck. Pain and itching appeared immediately after the bite. The skin lesion persisted for several weeks. Although the first documented case of human stings is published here, bites may have occurred in the past, albeit rarely.

Two new Ptychoptera Meigen, 1803 (Diptera, Ptychopteridae) from the Western Palaearctic.

Ptychopteraxanthopleura Dvorák, Obona & Manko, sp. nov. from Azerbaijan and Georgia, and Ptychopterastaryi Dvorák, Obona & Manko, sp. nov. from Bulgaria are described. P.xanthopleurasp. nov. differs from the other member of the lacustris group mainly by having almost completely yellow pleurae, and by the shape of the epandrium and gonocoxites. The diagnostics of P.staryisp. nov. and P.incognita Török, Kolcsár & Keresztes, 2015 based on male genitalia are provided.

Updated taxonomic keys for European Hippoboscidae (Diptera), and expansion in Central Europe of the bird louse fly Ornithomyacomosa (Austen, 1930) with the first record from Slovakia.

The available keys for European Hippoboscidae are outdated and do not cover all species currently known from Europe. Therefore, identification keys to the eleven genera and 31 species of the European hippoboscids are provided here. Ornithomyacomosa (Austen, 1930) (Diptera: Hippoboscidae) is recorded for the first time from the territory of Slovakia based on one female found on a sand martin, Ripariariparia (Linnaeus, 1758). The list of keds and louse flies recorded from the territory of Slovakia is increased to 20 species. New host records for Slovakia are presented.