chrysanthemi (Ahlberg, 1939: 276) (Diarthronomyia). Type locality: Europe (origin unknown, presumably from Asia with chrysanthemum trade). LT (Gagné, 1983: 68; USA: MI, East Lansing) M (NYSM). Chrysanthemum spp. ( Asteraceae). Distr.: widespread Nearctic, widespread northern Europe, Chile, Colombia, Argentina, Hawaiian Is, and New Zealand. Refs.: Gagné, 1994: 93; Gagné, 2004: 241 (cat.); Gagné, 2010: 355 (cat.); Gagné & Jaschhof, 2014: 321 (cat.).