Singhardina Mahmood, 1967 the subgenus of Eurhadina Haupt, 1929 (Auchenorrhyncha, Cicadellidae, Typhlocybinae): a review, with description of 32 new species. Entomologica Basiliensia, 24, 24 September 2002: 45-95. 64 [Zoological Record Volume 139]