Margarodidae
The Margarodidae or ground pearls are a family of scale insects within the superfamily Coccoidea. Members of the family include the Polish cochineal and Armenian cochineal and the original ground pearl genus, Margarodes. Beginning in 1880, a number of distinct subfamilies were recognized, with the giant coccids being the first. Although Maskell proposed a new family, many continued to regard the monophlebids as a mere subfamily for many years, and the Margarodidae classification continued to be polyphyletic through the 20th Century. Since then, taking the advice of Koteja several subfamilies and tribes have been elevated into their own families such as Matsucoccidae and Xylococcidae. The pared-down family of Margarodidae is monophyletic.
Dimargarodes Silvestri, 1938Eumargarodes Jakubski, 1950Eurhizococcus Silvestri, 1936Heteromargarodes Jakubski, 1965Margarodes Guilding, 1828Margarodesia Foldi, 1981Neomargarodes Green, 1914Porphyrophora Brandt, 1833Promargarodes Silvestri, 1938Termitococcus Silvestri, 1901Ultracoelostoma Cockerell, 1902
Former genera
Crypticerya Cockerell, 1895 now in the MonophlebidaeDesmococcus McKenzie, 1942 now in the PityococcidaeDrosicha Walker, 1858 now in the MonophlebidaeGueriniella Fernald, 1903 now in the MonophlebidaeIcerya Signoret, 1875 now in the MonophlebidaeKuwania Cockerell in Fernald, 1903 now in the KuwaniidaeMarchalina Vayssiere, 1923 now in the MarchalinidaeMatsucoccus Cockerell, 1909 now in the MatsucoccidaePalaeococcus Cockerell, 1894 now in the MonophlebidaeSteingelia Nassonov, 1908 now in the SteingeliidaeXylococcus Löw, 1883 now in the Xylococcidae