Description: English: An illustration of Helcomyza ustulata from British Entomology: (1824–1840). Date: before 1840 date QS:P,+1840-00-00T00:00:00Z/7,P1326,+1840-00-00T00:00:00Z/9. Source: British Entomology. Author: John Curtis. Permission(Reusing this file): Author died 1862, public domain.