Key to Florida species of Trioza

1. Head and thorax covered in conspicuous macroscopic setae dorsally. On Syzygium P. Browne ex Gaertn. spp............................................................... * T. adventicia Tuthill

— Head and thorax lacking macroscopic setae dorsally. On other hosts............................ 2

2(1). Large, length to tip of folded forewings> 3.0 mm. Body color light, green or light brown. Antenna> 1.5 times as long as head width. On Persea borbonia (L.) Spreng. and Persea palustris (Raf.) Sarg. ................................................................ T. magnoliae (Ashmead)

— Small, length to tip of folded forewings <3.0 mm. Body color dark maroon, brown or almost black. Antenna <1.5 times as long as head width. On Ficus aurea Nutt. ........................................................................... T. myresae Burckhardt and Halbert, spec. nov.