Genus Triozocera Pierce, 1909: 86 (originally described as Trioxocera)

Pierce, 1911: 490 (corrected spelling of Trioxocera); 1913: 9; 1918: 424; Bohart, 1941: 117; Fox and Fox, 1964: 404; Kinzelbach, 1971: 170; Kifune and Hirashima, 1979: 64; Kathirithamby, 1989:71; 1990: 473; Brailovsky and Márquez, 1974: 105; New, 1994: 4; Pohl et al., 1996: 118; Cook and Tribull, 2013: 319

Males: Tarsi five-segmented, strongly reduced tarsal claw often present; antennae seven-segmented with segments III and IV laterally flabellate; antennal segment V as long as or longer than segments VI and VII together. Abdominal segment IX ventrally elongated. Aedeagus long, straight or sinuous, but not hooked. Known hosts of the family are species of Heteroptera: Cydnidae .