<i>Tachydromia calcarata</i> (Strobl) (Diptera: Hybotidae) new to Britain, with redescription of both sexes, and its correct classification within the <i>T. interrupta</i> group of species

In spring 2004 the author SMH, together with John Parker, found a seemingly unknown British Tachydromia species in north Cumbria, not far from the locality from where T. edenensis Hewitt & Chvala was described in 2002. Using the key to the Palaearctic species (Chvala 1970), the specimens fitted closely with a redescription and illustrations of a then poorly known Austrian species, T. calcarata (Strobl, 1910) that was described on the basis of a single male collected on the bank of the River Enns near Admont in the Styrian Alps. For details on the holotype, see Chvala (2003).