Cerodontha (Cerodontha) Rondani

Lonsdale, Owen, 2021, Manual of North American Agromyzidae (Diptera, Schizophora), with revision of the fauna of the " Delmarva " states, ZooKeys 1051, pp. 1-481 : 1

Cerodontha (Cerodontha) Rondani

Cerodontha (Cerodontha) . Nowakowski, 1962: 656, 1967: 656, 1973: 42; Spencer 1969: 142; Spencer and Steyskal 1986b: 91; Boucher 2002: 579.

The nominal subgenus is quite readily diagnosed, as the first flagellomere has a narrow, produced point on the anterodorsal corner and the lateral scutellar setae are absent. The point on the first flagellomere is sometimes reduced so that the segment has only a slight anterodorsal angle ( Boucher 2002). The habitus is also quite characteristic, with species being relatively slender and elongate, and often quite heavily marked with yellow. The subgenus Xenophytomyza is similar in that the lateral scutellars are also absent and the first flagellomere is angled, but this angle is slight, never produced as a point, and the body is entirely dark, never with yellow markings.

The subgenus contains ca. 60 species, with the ten Nearctic species revised by Boucher (2002). The widespread and morphologically variable species C. dorsalis (Loew) occurs in the Delmarva states.