Cerodontha (Icteromyza) Hendel

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 (Icteromyza) Hendel

Dizygomyza (Icteromyza) Hendel, 1931: 51. Type species: Agromyza geniculata Fallén 1823, by original designation.

Phytobia (Icteromyza) . Frick 1952a: 392, 1959: 385.

Cerodontha (Icteromyza) . Nowakowski 1962: 102, 1967: 654, 1973: 30; Spencer 1969: 137; Spencer and Steyskal 1986b: 88; Zlobin 2000: 52, 2007d: 179; Boucher 2008: 557, 2012: 124.

The subgenus Icteromyza was most recently treated by Boucher, who first revised those species occurring in the north ( Boucher 2008), and then treating the entire Nearctic fauna (Boucher 2012). These studies were preceded by Zlobin (2000, 2007d) and Nowakowski’s (1962, 1967, 1973) Palaearctic treatments, and of course, Spencer and Steyskal’s (1986b) treatment of the fauna of the USA. More than 30 species are known, including 12 in the Nearctic, of which only two occur in the Delmarva states: C. longipennis (Loew) and C. vockerothi Boucher.

In this subgenus, the antennae are widely separated (but less so than in Dizygomyza ), the lunule is large, semi-circular, and often bulging, the ocellar triangle extends far anteriorly towards the lunule, and the frons and distal regions of the legs are often yellow, at least in part. Larvae mine in Cyperaceae , the anterior spiracles form long knob-like projections and the hind spiracles are displaced ventrally; puparia have a ventral curve posteriorly ( Nowakowski 1973; Spencer and Steyakal 1986b; Zlobin 2000).