Leafhopper species assigned to Ballana DeLong and Gloridonus Ball include nearly 15% of all endemic leafhoppers reported from arid regions of the southwestern USA and 29% of the leafhoppers considered to be endemic to California. Ballana is revised and subsumed within Gloridonus, the whole comprising 83 valid species: 10 belonging to the nominate subgenus Gloridonus, 56 restricted to the subgenus Ballana stat.nov. including 1 subspecies (B. brevidens curta DeLong) raised to species rank, leaving 15 species in the subgenus Laterana and 2 species in Gloridellus subg. nov. There are 42 new synonymies from among DeLong's species of Ballana described in 1937 and 1964 (quira = B. adversa DeLong, 1937; volsella = B. apta DeLong, 1964; letura, insula = B. angula DeLong, 1937; diversa, omani, paridens = B. arma DeLong, 1937; fatuita = Thamnotettix atridorsum Van Duzee, 1894; tiaja = B. calcea DeLong, 1937; bicornis, profusa = B. calipera DeLong, 1937; coarcta = B. callida DeLong, 1937; rara = Ballana [brevidens] curta DeLong, 1964; firma = B. delea DeLong, 1937; aleta = T. dissimilata Ball, 1910; clara = B. dola DeLong, 1964; mira = B. effusa DeLong, 1964; attenuata = B. filamenta DeLong, 1937; remissa = B. hebea DeLong, 1937; simplex, telora = B. indens DeLong, 1937; delta = B. nigridens DeLong, 1937; aperta, calcara = B. occidentalis DeLong, 1937; curvidens, orleta = B. polica DeLong, 1937; datuna = B. recurvata DeLong, 1937; mana = B. seca DeLong, 1937; sera = B. mera DeLong, 1937; parallela = B. spinosa DeLong, 1937; dira, extrana, repa = T. titusi Ball, 1910<
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