Amauromyza flavifrons (Meigen), head 84 anterior 85 lateral 86, 87 Amauromyza karli (Hendel), head 86 dorsal 87 lateral 88 Aulagromyza nitida (Malloch), male, lateral 89 Aulagromyza tridentata (Loew), male, lateral 90, 91 Calycomyza enceliae Spencer, male, on bush sunflower (R. Hemberger – California, Irvine).