A review of the Lecithoceridae (Lepidoptera: Gelechioidea) of southern Africa, based on type specimens deposited in the Ditsong National Museum of Natural History (TMSA), with descriptions of three new species Author Park, Kyu-Tek Author Prins, Willy De text Zootaxa 2019 2019-06-24 4623 1 61 89 journal article 26420 10.11646/zootaxa.4623.1.5 628844a2-73ea-4aed-b578-5d228dc8e736 1175-5326 3253578 F01190BC-7DF5-478A-8130-214313851BF1 Genus Idiopteryx Walsingham, 1891 Type species: Cryptolechia obliquella Walsingham, 1881 . = Isotypa Janse, 1954 , syn. nov. The genus Idiopteryx Walsingham is characterized by the forewing venation with R 3 stalked with R 4+5 , R 5 to costa, M 3 , CuA 1 , and CuA 2 on a common stalk; the hindwing with M 2 well-developed; the hind tibia with long, rough scales beyond half all around. It is differentiated from Dragmatucha Meyrick by having CuA 1 and CuA 2 , whereas in the latter, CuA 1 and CuA 2 coincident. Janse (1954) described Isotypa , separating it from Idiopteryx Walsingham based on vein R 5 absent in the forewing. However, the type species of the genus, discopuncta Janse, 1954 has a well-developed R 5 which is stalked with R 4 about middle. He probably erroneously read the veins in his description. Hence, Isotypa Janse , syn. nov . is synonymized with Idiopteryx Walsingham.