Cylindromyia interrupta can reach a length of and a wingspan of. Body is slender. Thorax is black, while the abdomen is reddish with two silver rings, a wide longitudinal black marking and black apicaltergites. Hindtibiae have 1 or 2 posteroventral bristles. Apical scutellars are absent. The abdomen has median discal bristles on tergites 1, 2, 3 and 4. The brightwhite calypteres stand out.
Biology
Adults can be found from May to August. They mainly feed on nectar and pollen of Apiaceae. This tachnid fly parasitizes moths and true bugs. The larvae develop inside the living host.