Notiphila caudata is a species of fly in the family Ephydridae.
Abdomen: tergite IV with 8-16 marginal macrochaetes : Female tegument shining black; chaetotaxy normal.
Wing: transverse MA2c slightly angled; 2 subequal costal spines.
Found on pond margins and in other humid situations, from May to September.
Canada, United States, Europe.