Oxycera analis can reach a length of and a wingspan of. In males of these medium-small soldier flies the body is almost entirely black, but the scutellar tubercles can be yellowish. In any case in the females the apex of tergite 5 of the scutellum is yellowish. Moreover the scutellum has two spines. Also the abdomen is black with a single apical spot, rarely with yellow side-markings. Antennal apical consists of the two last flagellomeres. Wings show a distinctdark cloud in the otherwiseclear wings.
Biology
Adults of Oxycera analis can be found in Summer, with a peak in June and July. Larvae live in the sediments and mosses associated with wetlands.